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 5925-01-224-6191
NSN 4140-00-079-8453
NSN 5935-01-433-0382
NSN 5990-00-195-4352
NSN 5998-01-210-6147
NSN 6240-00-222-0276
NSN 6650-00-056-1581
NSN 4140-01-463-9023
NSN 5965-00-689-1545
NSN 6220-01-314-5896
NSN 5920-00-034-0940
NSN 5960-01-202-6610