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 5920-01-394-4452
NSN 7035-01-118-9461
NSN 5935-00-436-2662
NSN 5905-01-371-9363
NSN 6650-01-202-7433
NSN 6240-01-289-9898
NSN 6610-00-726-9421
NSN 5999-01-381-8939
NSN 5895-00-825-9240
NSN 6645-01-279-9604
NSN 6645-01-023-8020
NSN 5935-01-100-5906