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 5990-01-191-9624
NSN 6150-01-415-6485
NSN 5996-01-568-2370
NSN 6650-01-421-3566
NSN 5945-00-075-0543
NSN 6150-01-363-8006
NSN 6620-00-601-3885
NSN 5975-00-838-0443
NSN 5999-01-429-7757
NSN 2925-01-577-7786
NSN 5920-00-038-6892
NSN 5920-01-123-9358