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 5895-01-150-5298
NSN 6610-00-051-0989
NSN 5920-01-303-6841
NSN 5915-00-398-0677
NSN 5996-00-509-8854
NSN 6105-01-209-1635
NSN 6145-01-598-5332
NSN 5998-01-175-3148
NSN 5965-00-079-2360
NSN 5935-00-175-7621
NSN 5905-01-513-7896
NSN 5935-00-931-7072