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 5935-01-478-3919
NSN 5996-00-239-2342
NSN 6105-01-481-0322
NSN 5990-00-087-6177
NSN 5965-01-353-0085
NSN 6650-01-573-0616
NSN 5975-00-044-6045
NSN 2925-01-381-5307
NSN 5945-00-498-5850
NSN 6110-01-019-0811
NSN 5935-00-272-7035
NSN 5910-01-300-1101