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 5965-00-957-5200
NSN 6240-01-615-8454
NSN 6320-00-456-0836
NSN 5996-01-260-6778
NSN 6220-01-375-3537
NSN 7035-01-176-2208
NSN 6650-01-142-1688
NSN 5895-01-564-4315
NSN 5996-01-210-5537
NSN 5985-00-228-0244
NSN 5999-00-100-5761
NSN 6320-01-495-0512