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 5985-00-248-4978
NSN 5985-01-425-1429
NSN 5835-01-208-5649
NSN 5915-01-047-6368
NSN 5965-01-036-6244
NSN 6685-01-447-1188
NSN 5960-00-636-4834
NSN 6650-00-316-0260
NSN 5910-01-650-3405
NSN 6645-01-114-2105
NSN 6645-00-250-4680
NSN 5895-00-940-8120