| MATERIAL | RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL |
| SPECIAL FEATURES | 0.54 IN./TYP/ DISTANCE FROM EDGE OF GASKET TO CENTER OF BOLT HOLES |
| STYLE DESIGNATOR | NON-CIRCULAR |
| TEMP RATING | -65.0 FAHRENHEIT AND 194.0 FAHRENHEIT |
| APERTURE WIDTH | 17.500 INCHES NOMINAL |
| APERTURE LENGTH | 20.500 INCHES NOMINAL |
| BOLT HOLE QUANTITY | 22 |
| CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH | 4.000 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH | 4.000 INCHES NOMINAL |
| CROSS-SECTIONAL THICKNESS | 0.060 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | SOLID SINGLE OR COMPOSITION |
| HOLE DIAMETER | 0.276 INCHES MINIMUM AND 0.283 INCHES MAXIMUM |
| INSIDE CORNER RADIUS | 0.250 INCHES NOMINAL |
| OUTSIDE CORNER RADIUS | 0.750 INCHES NOMINAL |
| OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH | 0.996 INCHES NOMINAL |
| OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH | 1.496 INCHES NOMINAL |
| OVERALL LENGTH | 21.970 INCHES MINIMUM AND 22.030 INCHES MAXIMUM |
| OVERALL WIDTH | 18.970 INCHES MINIMUM AND 19.030 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-14328 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |