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 5985-00-273-3175
NSN 7035-00-231-2871
NSN 6150-00-335-7189
NSN 6135-01-050-3194
NSN 5999-01-074-6319
NSN 5905-01-601-8860
NSN 5935-01-565-0255
NSN 5975-01-121-2238
NSN 6110-01-575-8554
NSN 6650-01-331-5243
NSN 5985-01-274-6609
NSN 5998-01-055-6043