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 6650-01-327-9403
NSN 5920-01-560-6155
NSN 5990-00-085-4299
NSN 6645-01-641-6391
NSN 2925-01-408-2088
NSN 6110-00-714-0115
NSN 5930-00-949-7980
NSN 2925-01-180-7793
NSN 5920-00-476-0528
NSN 5835-01-104-1299
NSN 6130-01-142-8169
NSN 6130-01-322-8507