AS568 O-Ring Size Chart
AS568 O-Ring Size Chart
The Global O-Ring and Seal Size Reference Chart covers the AS568 O-Ring Sizes published by the Society of Automotive Engineers (S.A.E.), and includes the Extended Sizes in the 400 Series. Dimensional tolerances for all AS568 o-rings offered by Global O-Ring and Seal are in accordance with ISO 3601-1A. The purpose of this chart is to specify the inside diameters, cross-sections, tolerances, and size identification codes (dash numbers) for o-rings used in sealing applications and for straight thread tube fitting boss gaskets.
| Series | CS Inches | Tolerance | CS Frac. | CS MM | ID Range |
|---|---|---|---|---|---|
| Zero | 0.070 | ± .003 | 1/16 | 1.78 | 0.029" - 5.239" |
| 100 | 0.103 | ± .003 | 3/32 | 2.62 | 0.049" - 9.737" |
| 200 | 0.139 | ± .004 | 1/8 | 3.53 | 0.171" - 17.955" |
| 300 | 0.210 | ± .005 | 3/16 | 5.33 | 0.412" - 25.940" |
| 400 | 0.275 | ± .006 | 1/4 | 6.99 | 1.350" - 25.940" |
| 900 | varies | varies | varies | 1.42 - 3.00 | 0.185" - 2.337" |
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AS568 O-Ring Size Reference Chart
| Dash # | CS Nominal | ID Nominal | OD Nominal | CS Inch | ID Inch | Tol Inch | CS mm | ID mm | Tol mm |
|---|---|---|---|---|---|---|---|---|---|
| 001 | 1/32 | 1/32 | 3/32 | 0.04 | 0.029 | ± .004 | 1.02 | 0.74 | ± .10 |
| 002 | 3/64 | 3/64 | 9/64 | 0.05 | 0.042 | ± .004 | 1.27 | 1.07 | ± .10 |
| 003 | 1/16 | 1/16 | 3/16 | 0.06 | 0.056 | ± .004 | 1.52 | 1.42 | ± .10 |
| 004 | 1/16 | 5/64 | 13/64 | 0.07 | 0.07 | ± .005 | 1.78 | 1.78 | ± .13 |
| 005 | 1/16 | 3/32 | 7/32 | 0.07 | 0.101 | ± .005 | 1.78 | 2.57 | ± .13 |
| 006 | 1/16 | 1/8 | 1/4 | 0.07 | 0.114 | ± .005 | 1.78 | 2.9 | ± .13 |
| 007 | 1/16 | 5/32 | 9/32 | 0.07 | 0.145 | ± .005 | 1.78 | 3.68 | ± .13 |
| 008 | 1/16 | 3/16 | 5/16 | 0.07 | 0.176 | ± .005 | 1.78 | 4.47 | ± .13 |
| 009 | 1/16 | 7/32 | 11/32 | 0.07 | 0.208 | ± .005 | 1.78 | 5.28 | ± .13 |
| 010 | 1/16 | 1/4 | 3/8 | 0.07 | 0.239 | ± .005 | 1.78 | 6.07 | ± .13 |
| 011 | 1/16 | 5/16 | 7/16 | 0.07 | 0.301 | ± .005 | 1.78 | 7.65 | ± .13 |
| 012 | 1/16 | 3/8 | 1/2 | 0.07 | 0.364 | ± .005 | 1.78 | 9.25 | ± .13 |
| 013 | 1/16 | 7/16 | 9/16 | 0.07 | 0.426 | ± .005 | 1.78 | 10.82 | ± .13 |
| 014 | 1/16 | 1/2 | 5/8 | 0.07 | 0.489 | ± .005 | 1.78 | 12.42 | ± .13 |
| 015 | 1/16 | 9/16 | 11/16 | 0.07 | 0.551 | ± .007 | 1.78 | 14 | ± .18 |
| 016 | 1/16 | 5/8 | 3/4 | 0.07 | 0.614 | ± .009 | 1.78 | 15.6 | ± .23 |
| 017 | 1/16 | 11/16 | 13/16 | 0.07 | 0.676 | ± .009 | 1.78 | 17.17 | ± .23 |
| 018 | 1/16 | 3/4 | 7/8 | 0.07 | 0.739 | ± .009 | 1.78 | 18.77 | ± .23 |
| 019 | 1/16 | 13/16 | 15/16 | 0.07 | 0.801 | ± .009 | 1.78 | 20.35 | ± .23 |
| 020 | 1/16 | 7/8 | 1 | 0.07 | 0.864 | ± .009 | 1.78 | 21.95 | ± .23 |
| 021 | 1/16 | 15/16 | 1-1/16 | 0.07 | 0.926 | ± .009 | 1.78 | 23.52 | ± .23 |
| 022 | 1/16 | 1 | 1-1/8 | 0.07 | 0.989 | ± .010 | 1.78 | 25.12 | ± .25 |
| 023 | 1/16 | 1-1/16 | 1-3/16 | 0.07 | 1.051 | ± .010 | 1.78 | 26.7 | ± .25 |
| 024 | 1/16 | 1-1/8 | 1-1/4 | 0.07 | 1.114 | ± .010 | 1.78 | 28.3 | ± .25 |
| 025 | 1/16 | 1-3/16 | 1-5/16 | 0.07 | 1.176 | ± .011 | 1.78 | 29.87 | ± .28 |
| 026 | 1/16 | 1-1/4 | 1-3/8 | 0.07 | 1.239 | ± .011 | 1.78 | 31.47 | ± .28 |
| 027 | 1/16 | 1-5/16 | 1-7/16 | 0.07 | 1.301 | ± .011 | 1.78 | 33.05 | ± .28 |
| 028 | 1/16 | 1-3/8 | 1-1/2 | 0.07 | 1.364 | ± .013 | 1.78 | 34.65 | ± .33 |
| 029 | 1/16 | 1-1/2 | 1-5/8 | 0.07 | 1.489 | ± .013 | 1.78 | 37.82 | ± .33 |
| 030 | 1/16 | 1-5/8 | 1-3/4 | 0.07 | 1.614 | ± .013 | 1.78 | 41 | ± .33 |
| 031 | 1/16 | 1-3/4 | 1-7/8 | 0.07 | 1.739 | ± .015 | 1.78 | 44.17 | ± .38 |
| 032 | 1/16 | 1-7/8 | 2 | 0.07 | 1.864 | ± .015 | 1.78 | 47.35 | ± .38 |
| 033 | 1/16 | 2 | 2-1/8 | 0.07 | 1.989 | ± .018 | 1.78 | 50.52 | ± .46 |
| 034 | 1/16 | 2-1/8 | 2-1/4 | 0.07 | 2.114 | ± .018 | 1.78 | 53.7 | ± .46 |
| 035 | 1/16 | 2-1/4 | 2-3/8 | 0.07 | 2.239 | ± .018 | 1.78 | 56.87 | ± .46 |
| 036 | 1/16 | 2-3/8 | 2-1/2 | 0.07 | 2.364 | ± .018 | 1.78 | 60.05 | ± .46 |
| 037 | 1/16 | 2-1/2 | 2-5/8 | 0.07 | 2.489 | ± .018 | 1.78 | 63.22 | ± .46 |
| 038 | 1/16 | 2-5/8 | 2-3/4 | 0.07 | 2.614 | ± .020 | 1.78 | 66.4 | ± .51 |
| 039 | 1/16 | 2-3/4 | 2-7/8 | 0.07 | 2.739 | ± .020 | 1.78 | 69.57 | ± .51 |
| 040 | 1/16 | 2-7/8 | 3 | 0.07 | 2.864 | ± .020 | 1.78 | 72.75 | ± .51 |
| 041 | 1/16 | 3 | 3-1/8 | 0.07 | 2.989 | ± .024 | 1.78 | 75.92 | ± .61 |
| 042 | 1/16 | 3-1/4 | 3-3/8 | 0.07 | 3.239 | ± .024 | 1.78 | 82.27 | ± .61 |
| 043 | 1/16 | 3-1/2 | 3-5/8 | 0.07 | 3.489 | ± .024 | 1.78 | 88.62 | ± .61 |
| 044 | 1/16 | 3-3/4 | 3-7/8 | 0.07 | 3.739 | ± .027 | 1.78 | 94.97 | ± .69 |
| 045 | 1/16 | 4 | 4-1/8 | 0.07 | 3.989 | ± .027 | 1.78 | 101.32 | ± .69 |
| 046 | 1/16 | 4-1/4 | 4-3/8 | 0.07 | 4.239 | ± .030 | 1.78 | 107.67 | ± .76 |
| 047 | 1/16 | 4-1/2 | 4-5/8 | 0.07 | 4.489 | ± .030 | 1.78 | 114.02 | ± .76 |
| 048 | 1/16 | 4-3/4 | 4-7/8 | 0.07 | 4.739 | ± .030 | 1.78 | 120.37 | ± .76 |
| 049 | 1/16 | 5 | 5-1/8 | 0.07 | 4.989 | ± .037 | 1.78 | 126.72 | ± .94 |
| 050 | 1/16 | 5-1/4 | 5-3/8 | 0.07 | 5.239 | ± .037 | 1.78 | 133.07 | ± .94 |
| 102 | 3/32 | 1/16 | 1/4 | 0.103 | 0.049 | ± .005 | 2.62 | 1.24 | ± .13 |
| 103 | 3/32 | 3/32 | 9/32 | 0.103 | 0.081 | ± .005 | 2.62 | 2.06 | ± .13 |
| 104 | 3/32 | 1/8 | 5/16 | 0.103 | 0.112 | ± .005 | 2.62 | 2.84 | ± .13 |
| 105 | 3/32 | 5/32 | 11/32 | 0.103 | 0.143 | ± .005 | 2.62 | 3.63 | ± .13 |
| 106 | 3/32 | 3/16 | 3/8 | 0.103 | 0.174 | ± .005 | 2.62 | 4.42 | ± .13 |
| 107 | 3/32 | 7/32 | 13/32 | 0.103 | 0.206 | ± .005 | 2.62 | 5.23 | ± .13 |
| 108 | 3/32 | 1/4 | 7/16 | 0.103 | 0.237 | ± .005 | 2.62 | 6.02 | ± .13 |
| 109 | 3/32 | 5/16 | 1/2 | 0.103 | 0.299 | ± .005 | 2.62 | 7.59 | ± .13 |
| 110 | 3/32 | 3/8 | 9/16 | 0.103 | 0.362 | ± .005 | 2.62 | 9.19 | ± .13 |
| 111 | 3/32 | 7/16 | 5/8 | 0.103 | 0.424 | ± .005 | 2.62 | 10.77 | ± .13 |
| 112 | 3/32 | 1/2 | 11/16 | 0.103 | 0.487 | ± .005 | 2.62 | 12.37 | ± .13 |
| 113 | 3/32 | 9/16 | 3/4 | 0.103 | 0.549 | ± .007 | 2.62 | 13.94 | ± .18 |
| 114 | 3/32 | 5/8 | 13/16 | 0.103 | 0.612 | ± .009 | 2.62 | 15.54 | ± .23 |
| 115 | 3/32 | 11/16 | 7/8 | 0.103 | 0.674 | ± .009 | 2.62 | 17.12 | ± .23 |
| 116 | 3/32 | 3/4 | 15/16 | 0.103 | 0.737 | ± .009 | 2.62 | 18.72 | ± .23 |
| 117 | 3/32 | 13/16 | 1 | 0.103 | 0.799 | ± .010 | 2.62 | 20.29 | ± .25 |
| 118 | 3/32 | 7/8 | 1-1/16 | 0.103 | 0.862 | ± .010 | 2.62 | 21.89 | ± .25 |
| 119 | 3/32 | 15/16 | 1-1/8 | 0.103 | 0.924 | ± .010 | 2.62 | 23.47 | ± .25 |
| 120 | 3/32 | 1 | 1-3/16 | 0.103 | 0.987 | ± .010 | 2.62 | 25.07 | ± .25 |
| 121 | 3/32 | 1-1/16 | 1-1/4 | 0.103 | 1.049 | ± .010 | 2.62 | 26.64 | ± .25 |
| 122 | 3/32 | 1-1/8 | 1-5/16 | 0.103 | 1.112 | ± .010 | 2.62 | 28.24 | ± .25 |
| 123 | 3/32 | 1-3/16 | 1-3/8 | 0.103 | 1.174 | ± .012 | 2.62 | 29.82 | ± .30 |
| 124 | 3/32 | 1-1/4 | 1-7/16 | 0.103 | 1.237 | ± .012 | 2.62 | 31.42 | ± .30 |
| 125 | 3/32 | 1-5/16 | 1-1/2 | 0.103 | 1.299 | ± .012 | 2.62 | 32.99 | ± .30 |
| 126 | 3/32 | 1-3/8 | 1-9/16 | 0.103 | 1.362 | ± .012 | 2.62 | 34.59 | ± .30 |
| 127 | 3/32 | 1-7/16 | 1-5/8 | 0.103 | 1.424 | ± .012 | 2.62 | 36.17 | ± .30 |
| 128 | 3/32 | 1-1/2 | 1-11/16 | 0.103 | 1.487 | ± .012 | 2.62 | 37.77 | ± .30 |
| 129 | 3/32 | 1-9/16 | 1-3/4 | 0.103 | 1.549 | ± .015 | 2.62 | 39.34 | ± .38 |
| 130 | 3/32 | 1-5/8 | 1-13/16 | 0.103 | 1.612 | ± .015 | 2.62 | 40.94 | ± .38 |
| 131 | 3/32 | 1-11/16 | 1-7/8 | 0.103 | 1.674 | ± .015 | 2.62 | 42.52 | ± .38 |
| 132 | 3/32 | 1-3/4 | 1-15/16 | 0.103 | 1.737 | ± .015 | 2.62 | 44.12 | ± .38 |
| 133 | 3/32 | 1-13/16 | 2 | 0.103 | 1.799 | ± .015 | 2.62 | 45.69 | ± .38 |
| 134 | 3/32 | 1-7/8 | 2-1/16 | 0.103 | 1.862 | ± .015 | 2.62 | 47.29 | ± .38 |
| 135 | 3/32 | 1-15/16 | 2-1/8 | 0.103 | 1.925 | ± .017 | 2.62 | 48.9 | ± .43 |
| 136 | 3/32 | 2 | 2-3/16 | 0.103 | 1.987 | ± .017 | 2.62 | 50.47 | ± .43 |
| 137 | 3/32 | 2-1/16 | 2-1/4 | 0.103 | 2.05 | ± .017 | 2.62 | 52.07 | ± .43 |
| 138 | 3/32 | 2-1/8 | 2-5/16 | 0.103 | 2.112 | ± .017 | 2.62 | 53.64 | ± .43 |
| 139 | 3/32 | 2-3/16 | 2-3/8 | 0.103 | 2.175 | ± .017 | 2.62 | 55.25 | ± .43 |
| 140 | 3/32 | 2-1/4 | 2-7/16 | 0.103 | 2.237 | ± .017 | 2.62 | 56.82 | ± .43 |
| 141 | 3/32 | 2-5/16 | 2-1/2 | 0.103 | 2.3 | ± .020 | 2.62 | 58.42 | ± .51 |
| 142 | 3/32 | 2-3/8 | 2-9/16 | 0.103 | 2.362 | ± .020 | 2.62 | 59.99 | ± .51 |
| 143 | 3/32 | 2-7/16 | 2-5/8 | 0.103 | 2.425 | ± .020 | 2.62 | 61.6 | ± .51 |
| 144 | 3/32 | 2-1/2 | 2-11/16 | 0.103 | 2.487 | ± .020 | 2.62 | 63.17 | ± .51 |
| 145 | 3/32 | 2-9/16 | 2-3/4 | 0.103 | 2.55 | ± .020 | 2.62 | 64.77 | ± .51 |
| 146 | 3/32 | 2-5/8 | 2-13/16 | 0.103 | 2.612 | ± .020 | 2.62 | 66.34 | ± .51 |
| 147 | 3/32 | 2-11/16 | 2-7/8 | 0.103 | 2.675 | ± .022 | 2.62 | 67.95 | ± .56 |
| 148 | 3/32 | 2-3/4 | 2-15/16 | 0.103 | 2.737 | ± .022 | 2.62 | 69.52 | ± .56 |
| 149 | 3/32 | 2-13/16 | 3 | 0.103 | 2.8 | ± .022 | 2.62 | 71.12 | ± .56 |
| 150 | 3/32 | 2-7/8 | 3-1/16 | 0.103 | 2.862 | ± .022 | 2.62 | 72.69 | ± .56 |
| 151 | 3/32 | 3 | 3-3/16 | 0.103 | 2.987 | ± .024 | 2.62 | 75.87 | ± .61 |
| 152 | 3/32 | 3-1/4 | 3-7/16 | 0.103 | 3.237 | ± .024 | 2.62 | 82.22 | ± .61 |
| 153 | 3/32 | 3-1/2 | 3-11/16 | 0.103 | 3.487 | ± .024 | 2.62 | 88.57 | ± .61 |
| 154 | 3/32 | 3-3/4 | 3-15/16 | 0.103 | 3.737 | ± .028 | 2.62 | 94.92 | ± .71 |
| 155 | 3/32 | 4 | 4-3/16 | 0.103 | 3.987 | ± .028 | 2.62 | 101.27 | ± .71 |
| 156 | 3/32 | 4-1/4 | 4-7/16 | 0.103 | 4.237 | ± .030 | 2.62 | 107.62 | ± .76 |
| 157 | 3/32 | 4-1/2 | 4-11/16 | 0.103 | 4.487 | ± .030 | 2.62 | 113.97 | ± .76 |
| 158 | 3/32 | 4-3/4 | 4-15/16 | 0.103 | 4.737 | ± .030 | 2.62 | 120.32 | ± .76 |
| 159 | 3/32 | 5 | 5-3/16 | 0.103 | 4.987 | ± .035 | 2.62 | 126.67 | ± .89 |
| 160 | 3/32 | 5-1/4 | 5-7/16 | 0.103 | 5.237 | ± .035 | 2.62 | 133.02 | ± .89 |
| 161 | 3/32 | 5-1/2 | 5-11/16 | 0.103 | 5.487 | ± .035 | 2.62 | 139.37 | ± .89 |
| 162 | 3/32 | 5-3/4 | 5-15/16 | 0.103 | 5.737 | ± .035 | 2.62 | 145.72 | ± .89 |
| 163 | 3/32 | 6 | 6-3/16 | 0.103 | 5.987 | ± .035 | 2.62 | 152.07 | ± .89 |
| 164 | 3/32 | 6-1/4 | 6-7/16 | 0.103 | 6.237 | ± .040 | 2.62 | 158.42 | ± 1.02 |
| 165 | 3/32 | 6-1/2 | 6-11/16 | 0.103 | 6.487 | ± .040 | 2.62 | 164.77 | ± 1.02 |
| 166 | 3/32 | 6-3/4 | 6-15/16 | 0.103 | 6.737 | ± .040 | 2.62 | 171.12 | ± 1.02 |
| 167 | 3/32 | 7 | 7-3/16 | 0.103 | 6.987 | ± .040 | 2.62 | 177.47 | ± 1.02 |
| 168 | 3/32 | 7-1/4 | 7-7/16 | 0.103 | 7.237 | ± .045 | 2.62 | 183.82 | ± 1.14 |
| 169 | 3/32 | 7-1/2 | 7-11/16 | 0.103 | 7.487 | ± .045 | 2.62 | 190.17 | ± 1.14 |
| 170 | 3/32 | 7-3/4 | 7-15/16 | 0.103 | 7.737 | ± .045 | 2.62 | 196.52 | ± 1.14 |
| 171 | 3/32 | 8 | 8-3/16 | 0.103 | 7.987 | ± .045 | 2.62 | 202.87 | ± 1.14 |
| 172 | 3/32 | 8-1/4 | 8-7/16 | 0.103 | 8.237 | ± .050 | 2.62 | 209.22 | ± 1.27 |
| 173 | 3/32 | 8-1/2 | 8-11/16 | 0.103 | 8.487 | ± .050 | 2.62 | 215.57 | ± 1.27 |
| 174 | 3/32 | 8-3/4 | 8-15/16 | 0.103 | 8.737 | ± .050 | 2.62 | 221.92 | ± 1.27 |
| 175 | 3/32 | 9 | 9-3/16 | 0.103 | 8.987 | ± .050 | 2.62 | 228.27 | ± 1.27 |
| 176 | 3/32 | 9-1/4 | 9-7/16 | 0.103 | 9.237 | ± .055 | 2.62 | 234.62 | ± 1.40 |
| 177 | 3/32 | 9-1/2 | 9-11/16 | 0.103 | 9.487 | ± .055 | 2.62 | 240.97 | ± 1.40 |
| 178 | 3/32 | 9-3/4 | 9-15/16 | 0.103 | 9.737 | ± .055 | 2.62 | 247.32 | ± 1.40 |
| 201 | 1/8 | 3/16 | 7/16 | 0.139 | 0.171 | ± .005 | 3.53 | 4.34 | ± .13 |
| 202 | 1/8 | 1/4 | 1/2 | 0.139 | 0.234 | ± .005 | 3.53 | 5.94 | ± .13 |
| 203 | 1/8 | 5/16 | 9/16 | 0.139 | 0.296 | ± .005 | 3.53 | 7.52 | ± .13 |
| 204 | 1/8 | 3/8 | 5/8 | 0.139 | 0.359 | ± .005 | 3.53 | 9.12 | ± .13 |
| 205 | 1/8 | 7/16 | 11/16 | 0.139 | 0.421 | ± .005 | 3.53 | 10.69 | ± .13 |
| 206 | 1/8 | 1/2 | 3/4 | 0.139 | 0.484 | ± .005 | 3.53 | 12.29 | ± .13 |
| 207 | 1/8 | 9/16 | 13/16 | 0.139 | 0.546 | ± .007 | 3.53 | 13.87 | ± .18 |
| 208 | 1/8 | 5/8 | 7/8 | 0.139 | 0.609 | ± .009 | 3.53 | 15.47 | ± .23 |
| 209 | 1/8 | 11/16 | 15/16 | 0.139 | 0.671 | ± .009 | 3.53 | 17.04 | ± .23 |
| 210 | 1/8 | 3/4 | 1 | 0.139 | 0.734 | ± .010 | 3.53 | 18.64 | ± .25 |
| 211 | 1/8 | 13/16 | 1-1/16 | 0.139 | 0.796 | ± .010 | 3.53 | 20.22 | ± .25 |
| 212 | 1/8 | 7/8 | 1-1/8 | 0.139 | 0.859 | ± .010 | 3.53 | 21.82 | ± .25 |
| 213 | 1/8 | 15/16 | 1-3/16 | 0.139 | 0.921 | ± .010 | 3.53 | 23.39 | ± .25 |
| 214 | 1/8 | 1 | 1-1/4 | 0.139 | 0.984 | ± .010 | 3.53 | 24.99 | ± .25 |
| 215 | 1/8 | 1-1/16 | 1-5/16 | 0.139 | 1.046 | ± .010 | 3.53 | 26.57 | ± .25 |
| 216 | 1/8 | 1-1/8 | 1-3/8 | 0.139 | 1.109 | ± .012 | 3.53 | 28.17 | ± .30 |
| 217 | 1/8 | 1-3/16 | 1-7/16 | 0.139 | 1.171 | ± .012 | 3.53 | 29.74 | ± .30 |
| 218 | 1/8 | 1-1/4 | 1-1/2 | 0.139 | 1.234 | ± .012 | 3.53 | 31.34 | ± .30 |
| 219 | 1/8 | 1-5/16 | 1-9/16 | 0.139 | 1.296 | ± .012 | 3.53 | 32.92 | ± .30 |
| 220 | 1/8 | 1-3/8 | 1-5/8 | 0.139 | 1.359 | ± .012 | 3.53 | 34.52 | ± .30 |
| 221 | 1/8 | 1-7/16 | 1-11/16 | 0.139 | 1.421 | ± .012 | 3.53 | 36.09 | ± .30 |
| 222 | 1/8 | 1-1/2 | 1-3/4 | 0.139 | 1.484 | ± .015 | 3.53 | 37.69 | ± .38 |
| 223 | 1/8 | 1-5/8 | 1-7/8 | 0.139 | 1.609 | ± .015 | 3.53 | 40.87 | ± .38 |
| 224 | 1/8 | 1-3/4 | 2 | 0.139 | 1.734 | ± .015 | 3.53 | 44.04 | ± .38 |
| 225 | 1/8 | 1-7/8 | 2-1/8 | 0.139 | 1.859 | ± .018 | 3.53 | 47.22 | ± .46 |
| 226 | 1/8 | 2 | 2-1/4 | 0.139 | 1.984 | ± .018 | 3.53 | 50.39 | ± .46 |
| 227 | 1/8 | 2-1/8 | 2-3/8 | 0.139 | 2.109 | ± .018 | 3.53 | 53.57 | ± .46 |
| 228 | 1/8 | 2-1/4 | 2-1/2 | 0.139 | 2.234 | ± .020 | 3.53 | 56.74 | ± .51 |
| 229 | 1/8 | 2-3/8 | 2-5/8 | 0.139 | 2.359 | ± .020 | 3.53 | 59.92 | ± .51 |
| 230 | 1/8 | 2-1/2 | 2-3/4 | 0.139 | 2.484 | ± .020 | 3.53 | 63.09 | ± .51 |
| 231 | 1/8 | 2-5/8 | 2-7/8 | 0.139 | 2.609 | ± .020 | 3.53 | 66.27 | ± .51 |
| 232 | 1/8 | 2-3/4 | 3 | 0.139 | 2.734 | ± .024 | 3.53 | 69.44 | ± .61 |
| 233 | 1/8 | 2-7/8 | 3-1/8 | 0.139 | 2.859 | ± .024 | 3.53 | 72.62 | ± .61 |
| 234 | 1/8 | 3 | 3-1/4 | 0.139 | 2.984 | ± .024 | 3.53 | 75.79 | ± .61 |
| 235 | 1/8 | 3-1/8 | 3-3/8 | 0.139 | 3.109 | ± .024 | 3.53 | 78.97 | ± .61 |
| 236 | 1/8 | 3-1/4 | 3-1/2 | 0.139 | 3.234 | ± .024 | 3.53 | 82.14 | ± .61 |
| 237 | 1/8 | 3-3/8 | 3-5/8 | 0.139 | 3.359 | ± .024 | 3.53 | 85.32 | ± .61 |
| 238 | 1/8 | 3-1/2 | 3-3/4 | 0.139 | 3.484 | ± .024 | 3.53 | 88.49 | ± .61 |
| 239 | 1/8 | 3-5/8 | 3-7/8 | 0.139 | 3.609 | ± .028 | 3.53 | 91.67 | ± .71 |
| 240 | 1/8 | 3-3/4 | 4 | 0.139 | 3.734 | ± .028 | 3.53 | 94.84 | ± .71 |
| 241 | 1/8 | 3-7/8 | 4-1/8 | 0.139 | 3.859 | ± .028 | 3.53 | 98.02 | ± .71 |
| 242 | 1/8 | 4 | 4-1/4 | 0.139 | 3.984 | ± .028 | 3.53 | 101.19 | ± .71 |
| 243 | 1/8 | 4-1/8 | 4-3/8 | 0.139 | 4.109 | ± .028 | 3.53 | 104.37 | ± .71 |
| 244 | 1/8 | 4-1/4 | 4-1/2 | 0.139 | 4.234 | ± .030 | 3.53 | 107.54 | ± .76 |
| 245 | 1/8 | 4-3/8 | 4-5/8 | 0.139 | 4.359 | ± .030 | 3.53 | 110.72 | ± .76 |
| 246 | 1/8 | 4-1/2 | 4-3/4 | 0.139 | 4.484 | ± .030 | 3.53 | 113.89 | ± .76 |
| 247 | 1/8 | 4-5/8 | 4-7/8 | 0.139 | 4.609 | ± .030 | 3.53 | 117.07 | ± .76 |
| 248 | 1/8 | 4-3/4 | 5 | 0.139 | 4.734 | ± .030 | 3.53 | 120.24 | ± .76 |
| 249 | 1/8 | 4-7/8 | 5-1/8 | 0.139 | 4.859 | ± .035 | 3.53 | 123.42 | ± .89 |
| 250 | 1/8 | 5 | 5-1/4 | 0.139 | 4.984 | ± .035 | 3.53 | 126.59 | ± .89 |
| 251 | 1/8 | 5-1/8 | 5-3/8 | 0.139 | 5.109 | ± .035 | 3.53 | 129.77 | ± .89 |
| 252 | 1/8 | 5-1/4 | 5-1/2 | 0.139 | 5.234 | ± .035 | 3.53 | 132.94 | ± .89 |
| 253 | 1/8 | 5-3/8 | 5-5/8 | 0.139 | 5.359 | ± .035 | 3.53 | 136.12 | ± .89 |
| 254 | 1/8 | 5-1/2 | 5-3/4 | 0.139 | 5.484 | ± .035 | 3.53 | 139.29 | ± .89 |
| 255 | 1/8 | 5-5/8 | 5-7/8 | 0.139 | 5.609 | ± .035 | 3.53 | 142.47 | ± .89 |
| 256 | 1/8 | 5-3/4 | 6 | 0.139 | 5.734 | ± .035 | 3.53 | 145.64 | ± .89 |
| 257 | 1/8 | 5-7/8 | 6-1/8 | 0.139 | 5.859 | ± .035 | 3.53 | 148.82 | ± .89 |
| 258 | 1/8 | 6 | 6-1/4 | 0.139 | 5.984 | ± .035 | 3.53 | 151.99 | ± .89 |
| 259 | 1/8 | 6-1/4 | 6-1/2 | 0.139 | 6.234 | ± .040 | 3.53 | 158.34 | ± 1.02 |
| 260 | 1/8 | 6-1/2 | 6-3/4 | 0.139 | 6.484 | ± .040 | 3.53 | 164.69 | ± 1.02 |
| 261 | 1/8 | 6-3/4 | 7 | 0.139 | 6.734 | ± .040 | 3.53 | 171.04 | ± 1.02 |
| 262 | 1/8 | 7 | 7-1/4 | 0.139 | 6.984 | ± .040 | 3.53 | 177.39 | ± 1.02 |
| 263 | 1/8 | 7-1/4 | 7-1/2 | 0.139 | 7.234 | ± .045 | 3.53 | 183.74 | ± 1.14 |
| 264 | 1/8 | 7-1/2 | 7-3/4 | 0.139 | 7.484 | ± .045 | 3.53 | 190.09 | ± 1.14 |
| 265 | 1/8 | 7-3/4 | 8 | 0.139 | 7.734 | ± .045 | 3.53 | 196.44 | ± 1.14 |
| 266 | 1/8 | 8 | 8-1/4 | 0.139 | 7.984 | ± .045 | 3.53 | 202.79 | ± 1.14 |
| 267 | 1/8 | 8-1/4 | 8-1/2 | 0.139 | 8.234 | ± .050 | 3.53 | 209.14 | ± 1.27 |
| 268 | 1/8 | 8-1/2 | 8-3/4 | 0.139 | 8.484 | ± .050 | 3.53 | 215.49 | ± 1.27 |
| 269 | 1/8 | 8-3/4 | 9 | 0.139 | 8.734 | ± .050 | 3.53 | 221.84 | ± 1.27 |
| 270 | 1/8 | 9 | 9-1/4 | 0.139 | 8.984 | ± .050 | 3.53 | 228.19 | ± 1.27 |
| 271 | 1/8 | 9-1/4 | 9-1/2 | 0.139 | 9.234 | ± .055 | 3.53 | 234.54 | ± 1.40 |
| 272 | 1/8 | 9-1/2 | 9-3/4 | 0.139 | 9.484 | ± .055 | 3.53 | 240.89 | ± 1.40 |
| 273 | 1/8 | 9-3/4 | 10 | 0.139 | 9.734 | ± .055 | 3.53 | 247.24 | ± 1.40 |
| 274 | 1/8 | 10 | 10-1/4 | 0.139 | 9.984 | ± .055 | 3.53 | 253.59 | ± 1.40 |
| 275 | 1/8 | 10-1/2 | 10-3/4 | 0.139 | 10.484 | ± .055 | 3.53 | 266.29 | ± 1.40 |
| 276 | 1/8 | 11 | 11-1/4 | 0.139 | 10.984 | ± .065 | 3.53 | 278.99 | ± 1.65 |
| 277 | 1/8 | 11-1/2 | 11-3/4 | 0.139 | 11.484 | ± .065 | 3.53 | 291.69 | ± 1.65 |
| 278 | 1/8 | 12 | 12-1/4 | 0.139 | 11.984 | ± .065 | 3.53 | 304.39 | ± 1.65 |
| 279 | 1/8 | 13 | 13-1/4 | 0.139 | 12.984 | ± .065 | 3.53 | 329.79 | ± 1.65 |
| 280 | 1/8 | 14 | 14-1/4 | 0.139 | 13.984 | ± .065 | 3.53 | 355.19 | ± 1.65 |
| 281 | 1/8 | 15 | 15-1/4 | 0.139 | 14.984 | ± .065 | 3.53 | 380.59 | ± 1.65 |
| 282 | 1/8 | 16 | 16-1/4 | 0.139 | 15.955 | ± .075 | 3.53 | 405.26 | ± 1.91 |
| 283 | 1/8 | 17 | 17-1/4 | 0.139 | 16.955 | ± .080 | 3.53 | 430.66 | ± 2.03 |
| 284 | 1/8 | 18 | 18-1/4 | 0.139 | 17.955 | ± .085 | 3.53 | 456.06 | ± 2.16 |
| 309 | 3/16 | 7/16 | 13/16 | 0.21 | 0.412 | ± .005 | 5.33 | 10.46 | ± .13 |
| 310 | 3/16 | 1/2 | 7/8 | 0.21 | 0.475 | ± .005 | 5.33 | 12.07 | ± .13 |
| 311 | 3/16 | 9/16 | 15/16 | 0.21 | 0.537 | ± .007 | 5.33 | 13.64 | ± .18 |
| 312 | 3/16 | 5/8 | 1 | 0.21 | 0.6 | ± .009 | 5.33 | 15.24 | ± .23 |
| 313 | 3/16 | 11/16 | 1-1/16 | 0.21 | 0.662 | ± .009 | 5.33 | 16.81 | ± .23 |
| 314 | 3/16 | 3/4 | 1-1/8 | 0.21 | 0.725 | ± .010 | 5.33 | 18.42 | ± .25 |
| 315 | 3/16 | 13/16 | 1-3/16 | 0.21 | 0.787 | ± .010 | 5.33 | 19.99 | ± .25 |
| 316 | 3/16 | 7/8 | 1-1/4 | 0.21 | 0.85 | ± .010 | 5.33 | 21.59 | ± .25 |
| 317 | 3/16 | 15/16 | 1-5/16 | 0.21 | 0.912 | ± .010 | 5.33 | 23.16 | ± .25 |
| 318 | 3/16 | 1 | 1-3/8 | 0.21 | 0.975 | ± .010 | 5.33 | 24.77 | ± .25 |
| 319 | 3/16 | 1-1/16 | 1-7/16 | 0.21 | 1.037 | ± .010 | 5.33 | 26.34 | ± .25 |
| 320 | 3/16 | 1-1/8 | 1-1/2 | 0.21 | 1.1 | ± .012 | 5.33 | 27.94 | ± .30 |
| 321 | 3/16 | 1-3/16 | 1-9/16 | 0.21 | 1.162 | ± .012 | 5.33 | 29.51 | ± .30 |
| 322 | 3/16 | 1-1/4 | 1-5/8 | 0.21 | 1.225 | ± .012 | 5.33 | 31.12 | ± .30 |
| 323 | 3/16 | 1-5/16 | 1-11/16 | 0.21 | 1.287 | ± .012 | 5.33 | 32.69 | ± .30 |
| 324 | 3/16 | 1-3/8 | 1-3/4 | 0.21 | 1.35 | ± .012 | 5.33 | 34.29 | ± .30 |
| 325 | 3/16 | 1-1/2 | 1-7/8 | 0.21 | 1.475 | ± .015 | 5.33 | 37.47 | ± .38 |
| 326 | 3/16 | 1-5/8 | 2 | 0.21 | 1.6 | ± .015 | 5.33 | 40.64 | ± .38 |
| 327 | 3/16 | 1-3/4 | 2-1/8 | 0.21 | 1.725 | ± .015 | 5.33 | 43.82 | ± .38 |
| 328 | 3/16 | 1-7/8 | 2-1/4 | 0.21 | 1.85 | ± .015 | 5.33 | 46.99 | ± .38 |
| 329 | 3/16 | 2 | 2-3/8 | 0.21 | 1.975 | ± .018 | 5.33 | 50.17 | ± .46 |
| 330 | 3/16 | 2-1/8 | 2-1/2 | 0.21 | 2.1 | ± .018 | 5.33 | 53.34 | ± .46 |
| 331 | 3/16 | 2-1/4 | 2-5/8 | 0.21 | 2.225 | ± .018 | 5.33 | 56.52 | ± .46 |
| 332 | 3/16 | 2-3/8 | 2-3/4 | 0.21 | 2.35 | ± .018 | 5.33 | 59.69 | ± .46 |
| 333 | 3/16 | 2-1/2 | 2-7/8 | 0.21 | 2.475 | ± .020 | 5.33 | 62.87 | ± .51 |
| 334 | 3/16 | 2-5/8 | 3 | 0.21 | 2.6 | ± .020 | 5.33 | 66.04 | ± .51 |
| 335 | 3/16 | 2-3/4 | 3-1/8 | 0.21 | 2.725 | ± .020 | 5.33 | 69.22 | ± .51 |
| 336 | 3/16 | 2-7/8 | 3-1/4 | 0.21 | 2.85 | ± .020 | 5.33 | 72.39 | ± .51 |
| 337 | 3/16 | 3 | 3-3/8 | 0.21 | 2.975 | ± .024 | 5.33 | 75.57 | ± .61 |
| 338 | 3/16 | 3-1/8 | 3-1/2 | 0.21 | 3.1 | ± .024 | 5.33 | 78.74 | ± .61 |
| 339 | 3/16 | 3-1/4 | 3-5/8 | 0.21 | 3.225 | ± .024 | 5.33 | 81.92 | ± .61 |
| 340 | 3/16 | 3-3/8 | 3-3/4 | 0.21 | 3.35 | ± .024 | 5.33 | 85.09 | ± .61 |
| 341 | 3/16 | 3-1/2 | 3-7/8 | 0.21 | 3.475 | ± .024 | 5.33 | 88.27 | ± .61 |
| 342 | 3/16 | 3-5/8 | 4 | 0.21 | 3.6 | ± .028 | 5.33 | 91.44 | ± .71 |
| 343 | 3/16 | 3-3/4 | 4-1/8 | 0.21 | 3.725 | ± .028 | 5.33 | 94.62 | ± .71 |
| 344 | 3/16 | 3-7/8 | 4-1/4 | 0.21 | 3.85 | ± .028 | 5.33 | 97.79 | ± .71 |
| 345 | 3/16 | 4 | 4-3/8 | 0.21 | 3.975 | ± .028 | 5.33 | 100.97 | ± .71 |
| 346 | 3/16 | 4-1/8 | 4-1/2 | 0.21 | 4.1 | ± .028 | 5.33 | 104.14 | ± .71 |
| 347 | 3/16 | 4-1/4 | 4-5/8 | 0.21 | 4.225 | ± .030 | 5.33 | 107.32 | ± .76 |
| 348 | 3/16 | 4-3/8 | 4-3/4 | 0.21 | 4.35 | ± .030 | 5.33 | 110.49 | ± .76 |
| 349 | 3/16 | 4-1/2 | 4-7/8 | 0.21 | 4.475 | ± .030 | 5.33 | 113.67 | ± .76 |
| 350 | 3/16 | 4-5/8 | 5 | 0.21 | 4.6 | ± .030 | 5.33 | 116.84 | ± .76 |
| 351 | 3/16 | 4-3/4 | 5-1/8 | 0.21 | 4.725 | ± .030 | 5.33 | 120.02 | ± .76 |
| 352 | 3/16 | 4-7/8 | 5-1/4 | 0.21 | 4.85 | ± .030 | 5.33 | 123.19 | ± .76 |
| 353 | 3/16 | 5 | 5-3/8 | 0.21 | 4.975 | ± .037 | 5.33 | 126.37 | ± .94 |
| 354 | 3/16 | 5-1/8 | 5-1/2 | 0.21 | 5.1 | ± .037 | 5.33 | 129.54 | ± .94 |
| 355 | 3/16 | 5-1/4 | 5-5/8 | 0.21 | 5.225 | ± .037 | 5.33 | 132.72 | ± .94 |
| 356 | 3/16 | 5-3/8 | 5-3/4 | 0.21 | 5.35 | ± .037 | 5.33 | 135.89 | ± .94 |
| 357 | 3/16 | 5-1/2 | 5-7/8 | 0.21 | 5.475 | ± .037 | 5.33 | 139.07 | ± .94 |
| 358 | 3/16 | 5-5/8 | 6 | 0.21 | 5.6 | ± .037 | 5.33 | 142.24 | ± .94 |
| 359 | 3/16 | 5-3/4 | 6-1/8 | 0.21 | 5.725 | ± .037 | 5.33 | 145.42 | ± .94 |
| 360 | 3/16 | 5-7/8 | 6-1/4 | 0.21 | 5.85 | ± .037 | 5.33 | 148.59 | ± .94 |
| 361 | 3/16 | 6 | 6-3/8 | 0.21 | 5.975 | ± .037 | 5.33 | 151.77 | ± .94 |
| 362 | 3/16 | 6-1/4 | 6-5/8 | 0.21 | 6.225 | ± .040 | 5.33 | 158.12 | ± 1.02 |
| 363 | 3/16 | 6-1/2 | 6-7/8 | 0.21 | 6.475 | ± .040 | 5.33 | 164.47 | ± 1.02 |
| 364 | 3/16 | 6-3/4 | 7-1/8 | 0.21 | 6.725 | ± .040 | 5.33 | 170.82 | ± 1.02 |
| 365 | 3/16 | 7 | 7-3/8 | 0.21 | 6.975 | ± .040 | 5.33 | 177.17 | ± 1.02 |
| 366 | 3/16 | 7-1/4 | 7-5/8 | 0.21 | 7.225 | ± .045 | 5.33 | 183.52 | ± 1.14 |
| 367 | 3/16 | 7-1/2 | 7-7/8 | 0.21 | 7.475 | ± .045 | 5.33 | 189.87 | ± 1.14 |
| 368 | 3/16 | 7-3/4 | 8-1/8 | 0.21 | 7.725 | ± .045 | 5.33 | 196.22 | ± 1.14 |
| 369 | 3/16 | 8 | 8-3/8 | 0.21 | 7.975 | ± .045 | 5.33 | 202.57 | ± 1.14 |
| 370 | 3/16 | 8-1/4 | 8-5/8 | 0.21 | 8.225 | ± .050 | 5.33 | 208.92 | ± 1.27 |
| 371 | 3/16 | 8-1/2 | 8-7/8 | 0.21 | 8.475 | ± .050 | 5.33 | 215.27 | ± 1.27 |
| 372 | 3/16 | 8-3/4 | 9-1/8 | 0.21 | 8.725 | ± .050 | 5.33 | 221.62 | ± 1.27 |
| 373 | 3/16 | 9 | 9-3/8 | 0.21 | 8.975 | ± .050 | 5.33 | 227.97 | ± 1.27 |
| 374 | 3/16 | 9-1/4 | 9-5/8 | 0.21 | 9.225 | ± .055 | 5.33 | 234.32 | ± 1.40 |
| 375 | 3/16 | 9-1/2 | 9-7/8 | 0.21 | 9.475 | ± .055 | 5.33 | 240.67 | ± 1.40 |
| 376 | 3/16 | 9-3/4 | 10-1/8 | 0.21 | 9.725 | ± .055 | 5.33 | 247.02 | ± 1.40 |
| 377 | 3/16 | 10 | 10-3/8 | 0.21 | 9.975 | ± .055 | 5.33 | 253.37 | ± 1.40 |
| 378 | 3/16 | 10-1/2 | 10-7/8 | 0.21 | 10.475 | ± .060 | 5.33 | 266.07 | ± 1.52 |
| 379 | 3/16 | 11 | 11-3/8 | 0.21 | 10.975 | ± .060 | 5.33 | 278.77 | ± 1.52 |
| 380 | 3/16 | 11-1/2 | 11-7/8 | 0.21 | 11.475 | ± .065 | 5.33 | 291.47 | ± 1.65 |
| 381 | 3/16 | 12 | 12-3/8 | 0.21 | 11.975 | ± .065 | 5.33 | 304.17 | ± 1.65 |
| 382 | 3/16 | 13 | 13-3/8 | 0.21 | 12.975 | ± .065 | 5.33 | 329.57 | ± 1.65 |
| 383 | 3/16 | 14 | 14-3/8 | 0.21 | 13.975 | ± .070 | 5.33 | 354.97 | ± 1.78 |
| 384 | 3/16 | 15 | 15-3/8 | 0.21 | 14.975 | ± .070 | 5.33 | 380.37 | ± 1.78 |
| 385 | 3/16 | 16 | 16-3/8 | 0.21 | 15.955 | ± .075 | 5.33 | 405.26 | ± 1.91 |
| 386 | 3/16 | 17 | 17-3/8 | 0.21 | 16.955 | ± .080 | 5.33 | 430.66 | ± 2.03 |
| 387 | 3/16 | 18 | 18-3/8 | 0.21 | 17.955 | ± .085 | 5.33 | 456.06 | ± 2.16 |
| 388 | 3/16 | 19 | 19-3/8 | 0.21 | 18.955 | ± .090 | 5.33 | 481.46 | ± 2.29 |
| 389 | 3/16 | 20 | 20-3/8 | 0.21 | 19.955 | ± .095 | 5.33 | 506.86 | ± 2.41 |
| 390 | 3/16 | 21 | 21-3/8 | 0.21 | 20.955 | ± .095 | 5.33 | 532.26 | ± 2.41 |
| 391 | 3/16 | 22 | 22-3/8 | 0.21 | 21.955 | ± .095 | 5.33 | 557.66 | ± 2.41 |
| 392 | 3/16 | 23 | 23-3/8 | 0.21 | 22.94 | ± .105 | 5.33 | 582.68 | ± 2.67 |
| 393 | 3/16 | 24 | 24-3/8 | 0.21 | 23.94 | ± .110 | 5.33 | 608.08 | ± 2.79 |
| 394 | 3/16 | 25 | 25-3/8 | 0.21 | 24.94 | ± .115 | 5.33 | 633.48 | ± 2.92 |
| 395 | 3/16 | 26 | 26-3/8 | 0.21 | 25.94 | ± .120 | 5.33 | 658.88 | ± 3.05 |
| 400 | 1/4 | 1-3/8 | 1-7/8 | 0.275 | 1.35 | ± .012 | 6.99 | 34.29 | ± .30 |
| 401 | 1/4 | 1-1/2 | 2 | 0.275 | 1.475 | ± .015 | 6.99 | 37.47 | ± .38 |
| 402 | 1/4 | 1-5/8 | 2-1/8 | 0.275 | 1.6 | ± .015 | 6.99 | 40.64 | ± .38 |
| 403 | 1/4 | 1-3/4 | 2-1/4 | 0.275 | 1.725 | ± .015 | 6.99 | 43.82 | ± .38 |
| 404 | 1/4 | 1-7/8 | 2-3/8 | 0.275 | 1.85 | ± .015 | 6.99 | 46.99 | ± .38 |
| 405 | 1/4 | 2 | 2-1/2 | 0.275 | 1.975 | ± .018 | 6.99 | 50.17 | ± .46 |
| 406 | 1/4 | 2-1/8 | 2-5/8 | 0.275 | 2.1 | ± .018 | 6.99 | 53.34 | ± .46 |
| 407 | 1/4 | 2-1/4 | 2-3/4 | 0.275 | 2.225 | ± .018 | 6.99 | 56.52 | ± .46 |
| 408 | 1/4 | 2-3/8 | 2-7/8 | 0.275 | 2.35 | ± .018 | 6.99 | 59.69 | ± .46 |
| 409 | 1/4 | 2-1/2 | 3 | 0.275 | 2.475 | ± .020 | 6.99 | 62.87 | ± .51 |
| 410 | 1/4 | 2-5/8 | 3-1/8 | 0.275 | 2.6 | ± .020 | 6.99 | 66.04 | ± .51 |
| 411 | 1/4 | 2-3/4 | 3-1/4 | 0.275 | 2.725 | ± .020 | 6.99 | 69.22 | ± .51 |
| 412 | 1/4 | 2-7/8 | 3-3/8 | 0.275 | 2.85 | ± .020 | 6.99 | 72.39 | ± .51 |
| 413 | 1/4 | 3 | 3-1/2 | 0.275 | 2.975 | ± .024 | 6.99 | 75.57 | ± .61 |
| 414 | 1/4 | 3-1/8 | 3-5/8 | 0.275 | 3.1 | ± .024 | 6.99 | 78.74 | ± .61 |
| 415 | 1/4 | 3-1/4 | 3-3/4 | 0.275 | 3.225 | ± .024 | 6.99 | 81.92 | ± .61 |
| 416 | 1/4 | 3-3/8 | 3-7/8 | 0.275 | 3.35 | ± .024 | 6.99 | 85.09 | ± .61 |
| 417 | 1/4 | 3-1/2 | 4 | 0.275 | 3.475 | ± .024 | 6.99 | 88.27 | ± .61 |
| 418 | 1/4 | 3-5/8 | 4-1/8 | 0.275 | 3.6 | ± .028 | 6.99 | 91.44 | ± .71 |
| 419 | 1/4 | 3-3/4 | 4-1/4 | 0.275 | 3.725 | ± .028 | 6.99 | 94.62 | ± .71 |
| 420 | 1/4 | 3-7/8 | 4-3/8 | 0.275 | 3.85 | ± .028 | 6.99 | 97.79 | ± .71 |
| 421 | 1/4 | 4 | 4-1/2 | 0.275 | 3.975 | ± .028 | 6.99 | 100.97 | ± .71 |
| 422 | 1/4 | 4-1/8 | 4-5/8 | 0.275 | 4.1 | ± .028 | 6.99 | 104.14 | ± .71 |
| 423 | 1/4 | 4-1/4 | 4-3/4 | 0.275 | 4.225 | ± .030 | 6.99 | 107.32 | ± .76 |
| 424 | 1/4 | 4-3/8 | 4-7/8 | 0.275 | 4.35 | ± .030 | 6.99 | 110.49 | ± .76 |
| 425 | 1/4 | 4-1/2 | 5 | 0.275 | 4.475 | ± .033 | 6.99 | 113.67 | ± .84 |
| 426 | 1/4 | 4-5/8 | 5-1/8 | 0.275 | 4.6 | ± .033 | 6.99 | 116.84 | ± .84 |
| 427 | 1/4 | 4-3/4 | 5-1/4 | 0.275 | 4.725 | ± .033 | 6.99 | 120.02 | ± .84 |
| 428 | 1/4 | 4-7/8 | 5-3/8 | 0.275 | 4.85 | ± .033 | 6.99 | 123.19 | ± .84 |
| 429 | 1/4 | 5 | 5-1/2 | 0.275 | 4.975 | ± .037 | 6.99 | 126.37 | ± .94 |
| 430 | 1/4 | 5-1/8 | 5-5/8 | 0.275 | 5.1 | ± .037 | 6.99 | 129.54 | ± .94 |
| 431 | 1/4 | 5-1/4 | 5-3/4 | 0.275 | 5.225 | ± .037 | 6.99 | 132.72 | ± .94 |
| 432 | 1/4 | 5-3/8 | 5-7/8 | 0.275 | 5.35 | ± .037 | 6.99 | 135.89 | ± .94 |
| 433 | 1/4 | 5-1/2 | 6 | 0.275 | 5.475 | ± .037 | 6.99 | 139.07 | ± .94 |
| 434 | 1/4 | 5-5/8 | 6-1/8 | 0.275 | 5.6 | ± .037 | 6.99 | 142.24 | ± .94 |
| 435 | 1/4 | 5-3/4 | 6-1/4 | 0.275 | 5.725 | ± .037 | 6.99 | 145.42 | ± .94 |
| 436 | 1/4 | 5-7/8 | 6-3/8 | 0.275 | 5.85 | ± .037 | 6.99 | 148.59 | ± .94 |
| 437 | 1/4 | 6 | 6-1/2 | 0.275 | 5.975 | ± .037 | 6.99 | 151.77 | ± .94 |
| 438 | 1/4 | 6-1/4 | 6-3/4 | 0.275 | 6.225 | ± .040 | 6.99 | 158.12 | ± 1.02 |
| 439 | 1/4 | 6-1/2 | 7 | 0.275 | 6.475 | ± .040 | 6.99 | 164.47 | ± 1.02 |
| 440 | 1/4 | 6-3/4 | 7-1/4 | 0.275 | 6.725 | ± .040 | 6.99 | 170.82 | ± 1.02 |
| 441 | 1/4 | 7 | 7-1/2 | 0.275 | 6.975 | ± .040 | 6.99 | 177.17 | ± 1.02 |
| 442 | 1/4 | 7-1/4 | 7-3/4 | 0.275 | 7.225 | ± .045 | 6.99 | 183.52 | ± 1.14 |
| 443 | 1/4 | 7-1/2 | 8 | 0.275 | 7.475 | ± .045 | 6.99 | 189.87 | ± 1.14 |
| 444 | 1/4 | 7-3/4 | 8-1/4 | 0.275 | 7.725 | ± .045 | 6.99 | 196.22 | ± 1.14 |
| 445 | 1/4 | 8 | 8-1/2 | 0.275 | 7.975 | ± .045 | 6.99 | 202.57 | ± 1.14 |
| 446 | 1/4 | 8-1/2 | 9 | 0.275 | 8.475 | ± .055 | 6.99 | 215.27 | ± 1.40 |
| 447 | 1/4 | 9 | 9-1/2 | 0.275 | 8.975 | ± .055 | 6.99 | 227.97 | ± 1.40 |
| 448 | 1/4 | 9-1/2 | 10 | 0.275 | 9.475 | ± .055 | 6.99 | 240.67 | ± 1.40 |
| 449 | 1/4 | 10 | 10-1/2 | 0.275 | 9.975 | ± .055 | 6.99 | 253.37 | ± 1.40 |
| 450 | 1/4 | 10-1/2 | 11 | 0.275 | 10.475 | ± .060 | 6.99 | 266.07 | ± 1.52 |
| 451 | 1/4 | 11 | 11-1/2 | 0.275 | 10.975 | ± .060 | 6.99 | 278.77 | ± 1.52 |
| 452 | 1/4 | 11-1/2 | 12 | 0.275 | 11.475 | ± .060 | 6.99 | 291.47 | ± 1.52 |
| 453 | 1/4 | 12 | 12-1/2 | 0.275 | 11.975 | ± .060 | 6.99 | 304.17 | ± 1.52 |
| 454 | 1/4 | 12-1/2 | 13 | 0.275 | 12.475 | ± .060 | 6.99 | 316.87 | ± 1.52 |
| 455 | 1/4 | 13 | 13-1/2 | 0.275 | 12.975 | ± .060 | 6.99 | 329.57 | ± 1.52 |
| 456 | 1/4 | 13-1/2 | 14 | 0.275 | 13.475 | ± .070 | 6.99 | 342.27 | ± 1.78 |
| 457 | 1/4 | 14 | 14-1/2 | 0.275 | 13.975 | ± .070 | 6.99 | 354.97 | ± 1.78 |
| 458 | 1/4 | 14-1/2 | 15 | 0.275 | 14.475 | ± .070 | 6.99 | 367.67 | ± 1.78 |
| 459 | 1/4 | 15 | 15-1/2 | 0.275 | 14.975 | ± .070 | 6.99 | 380.37 | ± 1.78 |
| 460 | 1/4 | 15-1/2 | 16 | 0.275 | 15.475 | ± .070 | 6.99 | 393.07 | ± 1.78 |
| 461 | 1/4 | 16 | 16-1/2 | 0.275 | 15.955 | ± .075 | 6.99 | 405.26 | ± 1.91 |
| 462 | 1/4 | 16-1/2 | 17 | 0.275 | 16.455 | ± .075 | 6.99 | 417.96 | ± 1.91 |
| 463 | 1/4 | 17 | 17-1/2 | 0.275 | 16.955 | ± .080 | 6.99 | 430.66 | ± 2.03 |
| 464 | 1/4 | 17-1/2 | 18 | 0.275 | 17.455 | ± .085 | 6.99 | 443.36 | ± 2.16 |
| 465 | 1/4 | 18 | 18-1/2 | 0.275 | 17.955 | ± .085 | 6.99 | 456.06 | ± 2.16 |
| 466 | 1/4 | 18-1/2 | 19 | 0.275 | 18.455 | ± .085 | 6.99 | 468.76 | ± 2.16 |
| 467 | 1/4 | 19 | 19-1/2 | 0.275 | 18.955 | ± .090 | 6.99 | 481.46 | ± 2.29 |
| 468 | 1/4 | 19-1/2 | 20 | 0.275 | 19.455 | ± .090 | 6.99 | 494.16 | ± 2.29 |
| 469 | 1/4 | 20 | 20-1/2 | 0.275 | 19.955 | ± .095 | 6.99 | 506.86 | ± 2.41 |
| 470 | 1/4 | 21 | 21-1/2 | 0.275 | 20.955 | ± .095 | 6.99 | 532.26 | ± 2.41 |
| 471 | 1/4 | 22 | 22-1/2 | 0.275 | 21.955 | ± .100 | 6.99 | 557.66 | ± 2.54 |
| 472 | 1/4 | 23 | 23-1/2 | 0.275 | 22.94 | ± .105 | 6.99 | 582.68 | ± 2.67 |
| 473 | 1/4 | 24 | 24-1/2 | 0.275 | 23.94 | ± .110 | 6.99 | 608.08 | ± 2.79 |
| 474 | 1/4 | 25 | 25-1/2 | 0.275 | 24.94 | ± .115 | 6.99 | 633.48 | ± 2.92 |
| 475 | 1/4 | 26 | 26-1/2 | 0.275 | 25.94 | ± .120 | 6.99 | 658.88 | ± 3.05 |
| 901 | 0.056 | 0.185 | ± .005 | 1.42 | 4.7 | ± .13 | |||
| 902 | 0.064 | 0.239 | ± .005 | 1.63 | 6.07 | ± .13 | |||
| 903 | 0.064 | 0.301 | ± .005 | 1.63 | 7.65 | ± .13 | |||
| 904 | 0.072 | 0.351 | ± .005 | 1.83 | 8.92 | ± .13 | |||
| 905 | 0.072 | 0.414 | ± .005 | 1.83 | 10.52 | ± .13 | |||
| 906 | 0.078 | 0.468 | ± .005 | 1.98 | 11.89 | ± .13 | |||
| 907 | 0.082 | 0.53 | ± .007 | 2.08 | 13.46 | ± .18 | |||
| 908 | 0.087 | 0.644 | ± .009 | 2.21 | 16.36 | ± .23 | |||
| 909 | 0.097 | 0.706 | ± .009 | 2.46 | 17.93 | ± .23 | |||
| 910 | 0.097 | 0.755 | ± .009 | 2.46 | 19.18 | ± .23 | |||
| 911 | 0.116 | 0.863 | ± .009 | 2.95 | 21.92 | ± .23 | |||
| 912 | 0.116 | 0.924 | ± .009 | 2.95 | 23.47 | ± .23 | |||
| 913 | 0.116 | 0.986 | ± .010 | 2.95 | 25.04 | ± .25 | |||
| 914 | 0.116 | 1.047 | ± .010 | 2.95 | 26.59 | ± .25 | |||
| 916 | 0.116 | 1.171 | ± .010 | 2.95 | 29.74 | ± .25 | |||
| 918 | 0.116 | 1.355 | ± .012 | 2.95 | 34.42 | ± .30 | |||
| 920 | 0.118 | 1.475 | ± .014 | 3 | 37.47 | ± .36 | |||
| 924 | 0.118 | 1.72 | ± .014 | 3 | 43.69 | ± .36 | |||
| 928 | 0.118 | 2.09 | ± .018 | 3 | 53.09 | ± .46 | |||
| 932 | 0.118 | 2.337 | ± .018 | 3 | 59.36 | ± .46 | |||
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History
This size chart was first published in 1971 by the A-6c2 Seals Committee at SAE (Society of Automotive Engineers) as Aerospace Standard AS568. These standards were later republished in 1974 as AS568A, in 2001 as AS568B, in 2008 as AS568C, and most recently in 2014 as AS568D. Any of these terms (AS568, AS568A, AS568B, AS568C, AS568D) may be used interchangeably when referring to an o-ring dash size.
Actual vs. Nominal
To assist our customers in selecting the correct size o-ring we have included 3 measurements for cross reference purposes; the “Nominal”, “Actual Inch”, and “Actual Metric” sizes. We are often asked, “What is the difference between Actual and Nominal sizes for o-rings?”. The Nominal (fractional) dimensions are in name only (often used when verbally describing the size). For more accurate measurements, please refer to the actual inch or millimeter sizes, as these are the true dimensions of the o-ring.
O-Ring Formulas
To calculate an o-ring’s outside diameter (OD) you may use this formula: 2(CS) + ID = OD
Conversely, if you have the OD and need to find the ID use this formula: OD – 2(CS) = ID