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 6650-00-116-7439
NSN 5915-01-194-2304
NSN 6105-00-296-5116
NSN 5975-00-647-4968
NSN 6110-01-547-6355
NSN 5920-01-423-8595
NSN 2925-01-560-4123
NSN 6105-01-548-1608
NSN 5920-01-153-0759
NSN 6110-01-411-6000
NSN 6110-00-864-0947
NSN 5905-01-428-6559