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 6130-00-897-9430
NSN 6685-01-266-9446
NSN 5930-01-476-6870
NSN 5905-01-200-7728
NSN 7035-00-445-9657
NSN 6645-00-873-4642
NSN 4140-01-231-9419
NSN 5920-01-453-2109
NSN 6650-01-344-6550
NSN 6150-01-435-6554
NSN 5855-01-366-2429
NSN 5990-01-035-5734