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 6130-01-323-6025
NSN 6105-01-608-5217
NSN 5905-01-643-5911
NSN 5999-01-129-3005
NSN 6220-00-476-6031
NSN 5855-01-424-2287
NSN 5925-01-423-0079
NSN 6110-00-766-0886
NSN 5985-01-026-3849
NSN 5998-01-555-8489
NSN 5999-01-401-5322
NSN 5935-00-860-0840