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 6130-01-552-2235
NSN 6610-01-096-4601
NSN 5985-01-502-9169
NSN 6135-00-998-5884
NSN 6110-01-272-7073
NSN 5920-01-371-3552
NSN 5895-01-114-7830
NSN 6105-00-567-2793
NSN 5925-00-238-0412
NSN 5965-01-112-8758
NSN 6130-01-335-6149
NSN 5999-01-394-8363