| CENTER HOLE DIAMETER | 5.574 INCHES MINIMUM AND 5.644 INCHES MAXIMUM |
| CROSS-SECTIONAL HEIGHT | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-DTL-25988, CLASS 1, GRADE 80 MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | RUBBER FLUOROSILICONE CLASS FQ |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | RUBBER, FLUOROSILICONE, ELASTOMER, OIL AND FUEL RESISTANT. O-RING, CLASS 1, GRADE 80 |
| SPECIFICATION/STANDARD DATA | 81349-MIL-DTL-25988/4A GOVERNMENT SPECIFICATION |