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 5985-00-308-4332
NSN 6110-01-130-2024
NSN 5905-01-403-2806
NSN 5915-00-171-1812
NSN 6145-01-246-7506
NSN 5895-00-768-0942
NSN 5985-01-568-9079
NSN 5920-01-270-0442
NSN 5910-01-481-8674
NSN 5915-01-159-2404
NSN 6620-00-226-2285
NSN 6320-00-405-2348