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 6130-01-581-0514
NSN 6650-01-467-2355
NSN 6650-01-389-8240
NSN 5855-00-185-1560
NSN 5915-01-329-1762
NSN 5998-01-308-7689
NSN 5985-00-036-6684
NSN 5996-01-228-5334
NSN 6645-01-007-5295
NSN 5999-00-478-6991
NSN 5996-01-610-6641
NSN 5925-01-503-0149