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 5965-00-006-3104
NSN 6150-01-386-6968
NSN 7035-01-651-0678
NSN 7035-01-386-5722
NSN 6650-01-646-1643
NSN 5910-01-359-9177
NSN 6135-01-096-0330
NSN 4140-01-052-3562
NSN 6610-01-395-7441
NSN 6110-01-050-8119
NSN 5835-00-051-9092
NSN 5945-00-558-1354