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 5855-01-473-2904
NSN 5965-00-164-8092
NSN 6130-00-952-2970
NSN 7035-01-007-7181
NSN 5965-01-498-4451
NSN 5996-01-224-3548
NSN 6320-00-908-6841
NSN 6135-00-100-0485
NSN 6220-00-948-1034
NSN 5905-01-115-1542
NSN 5935-00-126-5937
NSN 5905-00-141-0600