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 5998-01-008-4835
NSN 5960-00-651-9007
NSN 7035-00-295-0451
NSN 4140-01-476-9021
NSN 5895-00-724-8126
NSN 5835-01-133-6485
NSN 5998-01-020-1962
NSN 5996-01-144-9523
NSN 6645-00-208-0796
NSN 5985-00-419-5274
NSN 6150-01-263-1536
NSN 5935-00-146-1897