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 5935-01-034-6754
NSN 5895-01-584-6215
NSN 4140-01-591-5679
NSN 5935-01-301-0113
NSN 6650-01-069-7089
NSN 5935-00-616-2809
NSN 6135-01-648-4875
NSN 5985-00-332-4008
NSN 6130-01-587-5964
NSN 5835-01-142-9233
NSN 5920-01-461-3392
NSN 6220-01-481-5906