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 6110-01-179-3669
NSN 6135-01-448-1615
NSN 6320-01-462-2295
NSN 6135-01-430-3119
NSN 5835-01-138-0181
NSN 6620-00-388-0047
NSN 6105-01-205-8524
NSN 5925-01-616-2009
NSN 5895-01-100-3644
NSN 5965-01-030-7253
NSN 7035-01-496-9069
NSN 6650-01-159-3461