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 6320-01-259-2604
NSN 5990-01-078-1294
NSN 6220-01-020-2550
NSN 5905-01-307-7534
NSN 4140-01-492-4797
NSN 6110-01-010-0905
NSN 2925-01-541-5031
NSN 7035-01-188-1953
NSN 5835-00-946-2656
NSN 6685-00-459-4593
NSN 5835-01-281-7281
NSN 5945-01-660-7081