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 5895-01-480-4311
NSN 5965-01-504-8199
NSN 6650-00-234-3275
NSN 5945-01-068-9973
NSN 5998-01-295-6886
NSN 6110-01-318-5026
NSN 6240-00-353-5753
NSN 5910-00-024-0931
NSN 5835-01-484-4698
NSN 5998-01-039-0580
NSN 5960-01-459-6665
NSN 5998-00-837-7326