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 5965-01-039-1430
NSN 5930-00-189-1480
NSN 5920-01-073-3334
NSN 6685-00-499-5201
NSN 5925-01-437-5902
NSN 5895-01-102-2286
NSN 5975-01-337-5658
NSN 5915-01-433-0276
NSN 6620-01-252-3567
NSN 7035-01-336-0464
NSN 4140-00-934-8800
NSN 5935-01-023-2693