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 6145-01-647-0361
NSN 6105-01-053-9394
NSN 6685-01-328-8051
NSN 5920-01-189-5714
NSN 5915-01-294-7866
NSN 6145-00-890-7030
NSN 5910-00-170-6784
NSN 6110-00-762-2851
NSN 6135-01-575-8362
NSN 6240-00-042-7136
NSN 5945-01-222-0847
NSN 5996-00-337-8711