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 6135-00-050-7189
NSN 6220-00-940-0625
NSN 5965-01-161-8097
NSN 6150-00-693-3975
NSN 5999-01-364-8209
NSN 6220-01-322-7443
NSN 6645-00-535-6634
NSN 6135-00-904-6780
NSN 2925-01-464-3093
NSN 5855-01-184-8089
NSN 7035-01-429-7954
NSN 5975-00-565-1071