| O-Rings (page 2.3 of 4) |  |
| O-Rings (page 2.3 of 4) | |
AEROSPACE STANDARD 568 DASH NUMBERS
(-001 thru -050) (-102 thru -150) (-151 thru -219) (-220 thru -269)
(-270 thru -341) (-342 thru -391) (-392 thru -475)
| (A) = Size Reference (B) = Volume Cubic Inches (C) = Volume Cubic Centimeters | |||||||||
| Nominal Size Inches | Actual Size Inches | Actual Size Millimeters | |||||||
| (A) | I.D. | O.D. | W | I.D. | W | (B) | I.D. | W | (C) |
| -151 | 3 | 3-3/16 | 3/32 | 2.987 + .024 | 103 +.003 | .0809 | 57.87 + 0.61 | 2.62 + 0.08 | 1.326 |
| -152 | 3-1/4 | 3-7/16 | 3/32 | 3.237 + .024 | 103 +.003 | .0874 | 82.22 + 0.61 | 2.62 + 0.08 | 1.432 |
| -153 | 3-1/2 | 3-11/16 | 3/32 | 3.487 + .024 | 103 +.003 | .0940 | 88.57 + 0.61 | 2.62 + 0.08 | 1.540 |
| -154 | 3-3/4 | 3-15/16 | 3/32 | 3.737 + .028 | 103 +.003 | .1005 | 94.92 + 0.71 | 2.62 + 0.08 | 1.647 |
| -155 | 4 | 4-3/16 | 3/32 | 3.987 + .028 | 103 +.003 | .1071 | 101.62 + 0.71 | 262 + 0.08 | 1.755 |
| -156 | 4-1/4 | 4-7/16 | 3/32 | 4.237 + .030 | 103 +.003 | .1136 | 107.62 + 0.76 | 2.62 + 0.08 | 1.862 |
| -157 | 4-1/2 | 4-11/16 | 3/32 | 4.487 + .030 | 103 +.003 | .1202 | 113.97 + 0.76 | 2.62 + 0.08 | 1.970 |
| -158 | 4-3/4 | 4-15/16 | 3/32 | 4.737 + .030 | 103 +.003 | .1267 | 120.32 + 0.76 | 2.62 + 0.08 | 2.076 |
| -159 | 5 | 5-3/16 | 3/32 | 4.987 + .035 | 103 +.003 | .1332 | 126.67 + 0.89 | 2.62 + 0.08 | 2.183 |
| -160 | 5-1/4 | 5-7/16 | 3/32 | 5.237 + .035 | 103 +.003 | .1398 | 133.02 + 0.89 | 262 + 0.08 | 2.291 |
| -161 | 5-1/2 | 5-11/16 | 3/32 | 5.487 + .035 | 103 +.003 | .1463 | 139.37 + 0.89 | 2.62 + 0.08 | 2.397 |
| -162 | 5-3/4 | 5-15/16 | 3/32 | 5.737 + .035 | 103 +.003 | .1529 | 145.72 + 0.89 | 2.62 + 0.08 | 2.506 |
| -163 | 6 | 6-3/16 | 3/32 | 5.987 + .035 | 103 +.003 | .1594 | 152.07 + 0.89 | 2.62 + 0.08 | 2.612 |
| -164 | 6-1/4 | 6-7/16 | 3/32 | 6.237 + .040 | 103 +.003 | .1660 | 158.42 + 1.02 | 2.62 + 0.08 | 2.720 |
| -165 | 6-1/2 | 6-11/16 | 3/32 | 6.487 + .040 | 103 +.003 | .1725 | 164.77 + 1.02 | 2.62 + 0.08 | 2.827 |
| -166 | 6-3/4 | 6-15/16 | 3/32 | 6.737 + .040 | 103 +.003 | .1790 | 171.12 + 1.02 | 2.62 + 0.08 | 2.933 |
| -167 | 7 | 7-3/16 | 3/32 | 6.987 + .040 | 103 +.003 | .1856 | 177.47 + 1.02 | 2.62 + 0.08 | 3.041 |
| -168 | 7-1/4 | 7-7/16 | 3/32 | 7.237 + .045 | 103 +.003 | .1921 | 183.82 + 1.14 | 2.62 + 0.08 | 3.148 |
| -169 | 7-1/2 | 7-11/16 | 3/32 | 7.487 + .045 | 103 +.003 | .1987 | 190.17 + 1.14 | 2.62 + 0.08 | 3.256 |
| -170 | 7-3/4 | 7-15/16 | 3/32 | 7.737 + .045 | 103 +.003 | .2052 | 196.52 + 1.14 | 2.62 + 0.08 | 3.363 |
| -171 | 8 | 8-3/16 | 3/32 | 7.987 + .045 | 103 +.003 | .2118 | 202.87 + 1.14 | 2.62 + 0.08 | 3.471 |
| -172 | 8-1/4 | 8-7/16 | 3/32 | 8.237 + .050 | 103 +.003 | .2183 | 209.22 + 1.25 | 2.62 + 0.08 | 3.577 |
| -173 | 8-1/2 | 8-11/16 | 3/32 | 8.487 + .050 | 103 +.003 | .2249 | 215.57 + 1.25 | 2.62 + 0.08 | 3.685 |
| -174 | 8-3/4 | 8-15/16 | 3/32 | 8.737 + .050 | 103 +.003 | .2314 | 221.92 + 1.25 | 2.62 + 0.08 | 3.792 |
| -175 | 9 | 9-3/16 | 3/32 | 8.987 + .050 | 103 +.003 | .2379 | 228.27 + 1.25 | 2.62 + 0.08 | 3.898 |
| -176 | 9-1/4 | 9-7/16 | 3/32 | 9.237 + .055 | 103 +.003 | .2445 | 234.62 + 1.40 | 2.62 + 0.08 | 4.007 |
| -177 | 9-1/2 | 9-11/16 | 3/32 | 9.487 + .055 | 103 +.003 | .2510 | 240.97 + 1.40 | 2.62 + 0.08 | 4.113 |
| -178 | 9-3/4 | 9-15/16 | 3/32 | 9.737 + .055 | 103 +.003 | .2576 | 247.32 + 1.40 | 2.62 + 0.08 | 4.221 |
| -179 through -200 O-ring sizes not assigned | |||||||||
| -201 | 3/16 | 7/16 | 1/8 | .171 + .005 | 139 + .004 | .0148 | 4.34 + 1.12 | 3.53 + 0.10 | .243 |
| -202 | 1/4 | 1/2 | 1/8 | .234 + .005 | 139 + .004 | .0178 | 5.94 + 1.12 | 3.53 + 0.10 | .292 |
| -203 | 5/16 | 9/16 | 1/8 | .296 + .005 | 139 + .004 | .0207 | 7.52 + 1.12 | 3.53 + 0.10 | .339 |
| -204 | 3/8 | 5/8 | 1/8 | .359 + .005 | 139 + .004 | .0237 | 9.32 + 1.12 | 3.53 + 0.10 | .388 |
| -205 | 7/16 | 11/16 | 1/8 | .421 + .005 | 139 + .004 | .0267 | 10.69 + 1.12 | 3.53 + 0.10 | .438 |
| -206 | 1/2 | 3/4 | 1/8 | .484 + .005 | 139 + .004 | .0297 | 12.29 + 1.12 | 3.53 + 0.10 | .487 |
| -207 | 9/16 | 13/16 | 1/8 | .546 + .007 | 139 + .004 | .0327 | 13.87 + 1.17 | 3.53 + 0.10 | .536 |
| -208 | 5/8 | 7/8 | 1/8 | .609 + .009 | 139 + .004 | .0357 | 15.47 + 1.23 | 3.53 + 0.10 | .585 |
| -209 | 11/16 | 15/16 | 1/8 | .671 + .010 | 139 + .004 | .0386 | 17.04 + 1.23 | 3.53 + 0.10 | .633 |
| -210 | 3/4 | 1 | 1/8 | .734 + .010 | 139 + .004 | .0416 | 18.64 + 1.25 | 3.53 + 0.10 | .682 |
| -211 | 13/16 | 1-1/16 | 1/8 | .796 + .010 | 139 + .004 | .0446 | 20.22 + 1.25 | 3.53 + 0.10 | .731 |
| -212 | 7/8 | 1-1/8 | 1/8 | .859 + .010 | 139 + .004 | .0476 | 21.82 + 1.25 | 3.53 + 0.10 | .780 |
| -213 | 15/16 | 1-3/16 | 1/8 | .921 + .010 | 139 + .004 | .0505 | 23.40 + 1.25 | 3.53 + 0.10 | .828 |
| -214 | 1 | 1-1/4 | 1/8 | .984 + .010 | 139 + .004 | .0535 | 25.00 + 1.25 | 3.53 + 0.10 | .877 |
| -215 | 1-1/16 | 1-5/16 | 1/8 | 1.046 + .010 | 139 + .004 | .0565 | 26.57 + 1.25 | 3.53 + 0.10 | .926 |
| -216 | 1-1/8 | 1-3/8 | 1/8 | 1.100 + .012 | 139 + .004 | .0595 | 28.17 + 1.30 | 3.53 + 0.10 | .975 |
| -217 | 1-3/16 | 1-7/16 | 1/8 | 1.171 + .012 | 139 + .004 | .0625 | 29.75 + 1.30 | 3.53 + 0.10 | 1.024 |
| -218 | -1/4 | 1-1/2 | 1/8 | 1.234 + .012 | 139 + .004 | .0655 | 31.34 + 1.30 | 3.53 + 0.10 | 1.073 |
| -219 | 1-15/16 | 1-9/16 | 1/8 | 1.296 + .012 | 139 + .004 | .0684 | 32.92 + 1.30 | 3.53 + 0.10 | 1.121 |
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