
| AS568 -004 through -475 Dynamic Reciprocating Seal Design Guidelines | |||||||||
| AS- 568 DASH # |
O-ring | Gland (E) | Actual | % | Gland Width (L) | Groove | |||
| Cross Section |
Depth | Squeeze | Squeeze | Clearance | No Back Up |
One Back Up |
Two Back up |
Radius | |
| -004 to -050 |
.070 +/-.003 | .055 to .057 | .010 to .018 | 15 to 25 | .002 to .005 | .093 to .098 | .138 to .143 | .205 to .210 | .005 to .015 |
| -102 to -178 |
.103 +/-.003 | .088 to .090 | .010 to .018 | 10 to 17 | .002 to .005 | .140 to .145 | .171 to .176 | .238 to .243 | .005 to .015 |
| -201 to -284 |
.139 +/-.004 | .121 to .123 | .012 to .022 | 9 to 16 | .003 to .006 | .187 to .192 | .208 to .213 | .275 to .280 | .010 to .025 |
| -309 to -395 |
.210 +/-.005 | .185 to .188 | .017 to .030 | 8 to 14 | .003 to .006 | .281 to .286 | .311 to .316 | .410 to .415 | .020 to .035 |
| -410 to -475 |
.275 +/-.006 | .237 to .240 | .029 to .044 | 11 to 16 | .004 to .007 | .375 to .380 | .408 to .413 | .538 to .543 | .020 to .035 |