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 5965-01-271-0808
NSN 6620-01-641-8741
NSN 5835-00-537-7780
NSN 5999-00-257-5752
NSN 6110-01-605-2037
NSN 5910-01-003-5968
NSN 5855-01-125-4768
NSN 5905-00-271-9130
NSN 6610-00-186-9180
NSN 6135-00-110-1981
NSN 5910-01-428-5908
NSN 5905-00-280-1686