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 5915-00-869-6535
NSN 6130-01-319-6684
NSN 5935-01-111-8795
NSN 6130-00-171-7400
NSN 5855-01-138-4985
NSN 4140-01-370-8758
NSN 5895-01-501-7894
NSN 2925-01-505-1666
NSN 6650-01-119-0718
NSN 2925-00-246-3077
NSN 5960-00-644-4982
NSN 5999-01-163-6274