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 5910-01-555-3241
NSN 6620-01-476-7355
NSN 6105-01-548-5915
NSN 5950-01-480-3554
NSN 6150-00-513-7357
NSN 2925-01-547-4565
NSN 5945-00-752-5908
NSN 6650-01-122-0169
NSN 6150-01-353-0493
NSN 6130-01-457-0336
NSN 5925-01-338-3161
NSN 6320-01-176-8367