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 5998-01-096-0324
NSN 6240-01-089-6149
NSN 2925-00-017-9807
NSN 5920-01-349-8136
NSN 5910-01-534-7699
NSN 6145-00-797-3454
NSN 4140-01-597-2287
NSN 6130-01-399-8553
NSN 5965-01-142-8044
NSN 6620-00-714-4307
NSN 6645-01-399-0329
NSN 6130-01-212-9077