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 5945-01-041-8214
NSN 6620-01-223-2441
NSN 5965-01-022-9157
NSN 5925-00-688-4332
NSN 6620-00-351-9949
NSN 5920-01-576-9869
NSN 6110-01-166-1864
NSN 6135-00-767-0331
NSN 5910-01-628-3256
NSN 6610-01-459-8722
NSN 6650-01-606-9209
NSN 5905-00-282-6853