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 6320-01-459-6992
NSN 5920-00-922-4906
NSN 5945-01-571-6997
NSN 5960-01-226-0342
NSN 7035-01-580-4346
NSN 6130-01-029-9577
NSN 7035-01-132-7209
NSN 5925-00-041-1935
NSN 5935-01-568-2115
NSN 7035-00-922-5700
NSN 6110-01-268-3021
NSN 5920-01-007-8775