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 6130-01-136-2520
NSN 6685-01-199-1304
NSN 5990-00-114-1570
NSN 5990-01-357-6175
NSN 6650-00-238-1199
NSN 5945-01-448-9533
NSN 5920-00-914-0832
NSN 5895-01-505-7973
NSN 5835-01-392-0575
NSN 5975-01-508-4139
NSN 5996-01-068-4469
NSN 6685-00-402-7365