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 7035-01-606-5440
NSN 6240-00-677-0305
NSN 5999-01-312-6611
NSN 4140-00-849-9295
NSN 6610-01-371-3006
NSN 6240-00-115-2251
NSN 5960-00-934-3233
NSN 6110-01-051-1395
NSN 5910-01-358-9625
NSN 5905-00-493-4291
NSN 6135-01-017-3001
NSN 6130-00-279-5066