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 5999-01-268-8841
NSN 2925-01-407-4958
NSN 5975-01-311-6102
NSN 5895-01-328-7654
NSN 6650-01-388-4363
NSN 6240-01-199-3073
NSN 5910-01-223-3114
NSN 6320-01-578-6006
NSN 5998-01-298-3618
NSN 5920-01-466-3981
NSN 6105-01-544-4802
NSN 5920-01-426-8517