| APERTURE LENGTH | 287.910 INCHES NOMINAL |
| APERTURE WIDTH | 181.610 INCHES MINIMUM AND 183.090 INCHES MAXIMUM |
| CRITICALITY CODE JUSTIFICATION | FEAT |
| CROSS-SECTIONAL HEIGHT | 2.610 INCHES MINIMUM AND 2.870 INCHES MAXIMUM |
| CROSS-SECTIONAL THICKNESS | 3.580 INCHES MINIMUM AND 3.840 INCHES MAXIMUM |
| MATERIAL | NICKEL ALLOY INNER RING |
| MATERIAL | RUBBER OUTER RING |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAL,CHASSIS |
| PROPRIETARY CHARACTERISTICS | PACS |
| SPECIAL FEATURES | FEATGTECH DATA INDICATES NUCLEAR, BIOLOGICAL AND CHEMICAL |