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 6650-00-065-7744
NSN 5910-01-174-3557
NSN 6135-00-240-3200
NSN 5998-00-411-3570
NSN 5835-01-199-1683
NSN 5910-00-905-6425
NSN 5998-01-581-5322
NSN 6650-00-910-2708
NSN 6145-00-477-2959
NSN 5935-01-508-4433
NSN 6220-01-063-3771
NSN 5999-01-431-8878