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 2925-00-791-8776
NSN 5930-01-388-1287
NSN 6610-00-724-7102
NSN 6150-01-071-4677
NSN 5835-00-275-0584
NSN 6650-01-175-0841
NSN 6240-01-444-1673
NSN 5855-01-658-4510
NSN 2925-00-939-1979
NSN 5935-01-338-5909
NSN 5895-01-141-7416
NSN 5960-01-614-0489