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 5996-00-736-4589
NSN 5915-01-301-4043
NSN 5950-01-634-0677
NSN 5915-00-216-5909
NSN 6320-01-382-9676
NSN 5990-01-540-1619
NSN 7035-00-153-3826
NSN 6220-01-519-2892
NSN 5999-00-383-3381
NSN 5975-01-576-9733
NSN 5855-00-548-4742
NSN 5935-00-566-6195