| APERTURE LENGTH | 15.430 INCHES NOMINAL |
| APERTURE WIDTH | 20.430 INCHES NOMINAL |
| BOLT HOLE QUANTITY | 18 |
| CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH | 4.688 INCHES NOMINAL ALL HOLES |
| CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH | 4.500 INCHES NOMINAL ALL HOLES |
| CROSS-SECTIONAL THICKNESS | 0.125 INCHES NOMINAL |
| HOLE DIAMETER | 0.220 INCHES MINIMUM AND 0.226 INCHES MAXIMUM ALL HOLES |
| OVERALL LENGTH | 22.190 INCHES NOMINAL |
| OVERALL WIDTH | 17.190 INCHES NOMINAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | GASKET |
| MATERIAL DOCUMENT AND CLASSIFICATION | MMM-A-1617, TYPE II OR EQUIVALENT FED SPEC SINGLE MATERIAL RESPONSE BACKING |
| MATERIAL DOCUMENT AND CLASSIFICATION | TYPE II, GRADE A, COND. MEDIUM PER ASTM D6576 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ADHESIVE BACKING |
| MATERIAL | RUBBER NEOPRENE OVERALL |
| OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH | 1.720 INCHES NOMINAL |
| OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH | 0.470 INCHES NOMINAL |
| OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG LENGTH | 0.880 INCHES NOMINAL |
| STYLE DESIGNATOR | NON-CIRCULAR |