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 5905-01-526-9457
NSN 6645-00-848-8490
NSN 5998-00-248-6943
NSN 6130-00-754-2950
NSN 6645-00-794-4576
NSN 5920-00-974-4381
NSN 6145-01-495-0668
NSN 6645-00-052-3201
NSN 5998-01-543-7399
NSN 5998-01-331-3690
NSN 5915-01-369-4719
NSN 5925-00-806-7493