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 6135-00-932-3136
NSN 6610-00-906-5723
NSN 5985-01-186-4426
NSN 5910-01-065-6790
NSN 6150-01-194-1222
NSN 5835-00-484-1529
NSN 5905-01-261-4647
NSN 6645-01-076-4655
NSN 6240-01-122-7391
NSN 5990-00-099-0822
NSN 6650-01-327-3068
NSN 5960-00-860-7709