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 5950-00-816-5264
NSN 5945-01-322-3772
NSN 6130-01-650-5163
NSN 6110-00-288-4179
NSN 5985-01-514-8942
NSN 5930-00-467-9188
NSN 5996-01-526-2265
NSN 5998-00-143-4723
NSN 6610-00-350-1091
NSN 6685-01-226-8645
NSN 5998-01-277-7116
NSN 6135-01-238-2878