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 7035-01-658-1623
NSN 5965-01-419-2251
NSN 7035-00-517-8232
NSN 5985-00-080-6576
NSN 6105-01-395-3529
NSN 6135-01-528-6896
NSN 6110-01-384-3259
NSN 2925-00-486-8640
NSN 6650-01-248-9508
NSN 5920-01-628-0275
NSN 5960-00-494-4764
NSN 5960-00-188-6977