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 5835-01-258-5597
NSN 6220-01-363-1312
NSN 6320-01-072-2073
NSN 5895-00-200-7114
NSN 4140-00-908-2363
NSN 5855-00-560-0110
NSN 6610-00-278-7647
NSN 6105-01-643-3501
NSN 5945-01-123-4218
NSN 5945-00-409-6580
NSN 5905-01-306-8731
NSN 5965-00-686-7067