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 5920-01-594-6994
NSN 6135-00-708-0892
NSN 6685-00-491-1101
NSN 6645-01-428-1618
NSN 5855-01-492-6913
NSN 6685-01-285-8337
NSN 6135-01-310-9866
NSN 5910-00-336-4525
NSN 6645-01-519-2220
NSN 6110-01-431-4257
NSN 5855-00-427-7848
NSN 5990-01-463-2279