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 6610-01-395-9324
NSN 5996-01-123-9038
NSN 5925-00-424-9301
NSN 5998-01-602-9656
NSN 6150-01-100-4337
NSN 5965-01-385-7813
NSN 6645-01-062-0905
NSN 6150-01-058-1014
NSN 7035-00-849-5526
NSN 5925-00-908-2843
NSN 5855-01-411-0189
NSN 5895-00-620-0518