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 6130-00-900-4758
NSN 5990-01-150-7443
NSN 7035-00-731-8729
NSN 6320-01-495-0512
NSN 5996-00-597-2234
NSN 5960-01-445-9655
NSN 6105-01-363-5281
NSN 4140-01-647-8871
NSN 5895-01-451-4341
NSN 5935-00-421-1763
NSN 5915-01-567-7175
NSN 5905-00-823-0033