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 6650-01-297-4376
NSN 5910-01-592-2746
NSN 5985-01-617-5355
NSN 5915-00-844-5713
NSN 6130-00-153-3136
NSN 5950-00-401-1565
NSN 5895-01-562-8591
NSN 5985-00-832-5945
NSN 5960-00-227-0243
NSN 6610-01-436-2163
NSN 5999-01-599-8474
NSN 5965-01-509-0926