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 5835-00-863-0959
NSN 5855-01-428-9456
NSN 6130-01-546-1011
NSN 5905-01-227-6380
NSN 5999-00-938-0207
NSN 5996-00-088-8891
NSN 2925-00-174-4322
NSN 6150-01-647-8403
NSN 5965-01-308-3786
NSN 5998-00-863-0202
NSN 5996-01-273-3934
NSN 2925-00-180-2532