| CENTER HOLE DIAMETER | 4.457 INCHES MINIMUM AND 4.517 INCHES MAXIMUM |
| CROSS-SECTIONAL HEIGHT | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 7280 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE |
| MATERIAL | FLUOROCARBON RUBBER |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PACKING PREFORMED - AMS 7280,'O' RING |