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 7035-01-014-3808
NSN 5999-01-547-2080
NSN 5935-01-457-5224
NSN 6240-00-234-5781
NSN 5960-01-226-0342
NSN 6150-00-253-3796
NSN 5998-00-146-7033
NSN 5915-00-518-1644
NSN 5925-01-540-0927
NSN 4140-01-468-2975
NSN 7035-00-421-8710
NSN 5895-01-594-3027