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 5920-01-226-7038
NSN 6645-01-395-4129
NSN 5915-01-379-1482
NSN 6145-00-378-3836
NSN 6105-01-370-5226
NSN 5895-00-260-1806
NSN 5895-01-395-9656
NSN 6150-01-398-8973
NSN 2925-01-487-0886
NSN 5895-01-359-7431
NSN 6110-01-089-9017
NSN 5905-01-154-6171