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 5998-00-891-9674
NSN 5999-00-256-9366
NSN 6650-01-442-7510
NSN 6220-01-462-0236
NSN 5985-01-435-5082
NSN 5998-01-174-3330
NSN 6145-00-819-0062
NSN 5855-00-165-3093
NSN 6220-00-288-4350
NSN 6220-01-411-9454
NSN 5895-01-560-7485
NSN 5925-01-204-6888