The graphite material is reinforced grafoil
A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5930-01-283-2277
NSN 6130-00-312-5422
NSN 5999-00-099-6889
NSN 6130-00-246-6915
NSN 5985-01-207-7883
NSN 5985-01-187-8297
NSN 4140-00-873-3448
NSN 6610-00-083-6509
NSN 6130-01-020-6314
NSN 5835-01-310-8979
NSN 6320-01-514-6141
NSN 5905-01-025-7536