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 6220-00-240-0142
NSN 2925-01-055-9705
NSN 5975-01-235-0954
NSN 5920-01-039-8099
NSN 6220-00-803-6379
NSN 5905-00-739-5153
NSN 5930-01-154-8303
NSN 6220-01-106-3215
NSN 6130-01-462-7682
NSN 5998-00-378-4096
NSN 6220-01-508-8223
NSN 5996-00-182-7627