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 7035-01-424-7019
NSN 5895-01-074-6781
NSN 6105-01-625-5032
NSN 5925-01-321-5140
NSN 2925-01-631-7004
NSN 5855-00-058-1293
NSN 6650-01-017-6716
NSN 6105-01-322-1985
NSN 6240-01-566-3241
NSN 2925-00-180-2532
NSN 6110-00-288-4179
NSN 5855-01-047-2136