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 5996-01-588-6414
NSN 6610-01-281-7536
NSN 5925-00-636-5683
NSN 2925-01-073-8223
NSN 6220-00-483-4044
NSN 5905-01-584-7826
NSN 6650-00-828-6553
NSN 4140-00-087-0100
NSN 5965-01-088-5414
NSN 6130-01-592-7316
NSN 5925-01-489-1089
NSN 6130-00-299-6920