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 5905-00-275-1124
NSN 5965-01-196-1526
NSN 6650-01-633-9147
NSN 4140-01-040-1700
NSN 6240-01-605-1799
NSN 6220-01-047-7325
NSN 5996-00-259-0309
NSN 5925-01-195-2985
NSN 5935-01-651-8546
NSN 5945-01-128-9460
NSN 6610-00-405-3108
NSN 5930-01-277-7188