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 5965-01-040-4178
NSN 6110-00-961-5204
NSN 5920-01-263-8706
NSN 5895-01-373-1357
NSN 6135-01-151-2705
NSN 6135-01-025-8109
NSN 5985-01-116-9900
NSN 5895-01-485-0134
NSN 5965-01-429-0881
NSN 5999-00-833-8143
NSN 6130-01-142-1308
NSN 6650-00-832-6970