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 5950-00-655-1416
NSN 6645-01-444-3016
NSN 6135-01-347-0201
NSN 4140-01-085-4965
NSN 5998-01-568-3600
NSN 6135-00-112-8637
NSN 5985-00-081-1885
NSN 5930-01-579-2194
NSN 6145-00-419-0550
NSN 2925-01-288-2091
NSN 6650-01-562-6772
NSN 6150-00-471-8925