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 5855-01-380-9950
NSN 6320-01-246-4390
NSN 5835-01-522-1023
NSN 5905-01-246-2329
NSN 6650-00-169-1866
NSN 5925-00-568-2455
NSN 5925-00-810-0525
NSN 5910-01-397-5550
NSN 6130-01-408-7504
NSN 5895-00-769-9665
NSN 5998-01-089-7864
NSN 5905-00-358-1512