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 5999-00-970-8389
NSN 6650-00-389-4111
NSN 5945-01-595-1573
NSN 6610-01-115-5791
NSN 5895-01-467-8269
NSN 5960-00-387-6377
NSN 5925-01-506-3372
NSN 6135-00-134-6648
NSN 6685-00-484-5721
NSN 6145-01-501-2771
NSN 6150-01-632-8514
NSN 7035-01-381-7622