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 6150-01-308-8775
NSN 5910-00-854-3358
NSN 7035-01-556-2520
NSN 5915-01-444-8938
NSN 6645-00-209-5778
NSN 6620-00-246-5159
NSN 6150-01-410-7573
NSN 6220-01-495-1433
NSN 6130-01-123-2530
NSN 5999-01-397-7648
NSN 4140-01-094-6836
NSN 5835-01-024-9249