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 5835-00-269-2232
NSN 6130-01-122-5383
NSN 5895-01-033-8292
NSN 6110-01-242-8363
NSN 5945-01-148-1654
NSN 5930-01-411-8321
NSN 6240-00-578-6763
NSN 5895-00-825-3099
NSN 6645-00-960-6594
NSN 6240-01-041-7477
NSN 6240-00-698-5822
NSN 6135-00-262-6807