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 5965-01-030-7253
NSN 5910-01-465-4152
NSN 6110-00-946-5384
NSN 6110-01-277-0602
NSN 5910-01-453-7983
NSN 6650-01-537-5388
NSN 6110-01-431-0748
NSN 5920-01-464-4373
NSN 5905-00-258-8426
NSN 5920-01-241-3227
NSN 5990-00-337-5359
NSN 2925-00-455-2367