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 5945-01-527-4857
NSN 6620-00-221-5576
NSN 5910-00-877-5819
NSN 5965-00-333-3359
NSN 6135-01-391-6515
NSN 5960-01-311-2170
NSN 5996-01-029-8011
NSN 6650-00-135-7484
NSN 6150-00-760-1387
NSN 5999-00-135-4939
NSN 6220-01-285-6344
NSN 5996-01-178-1142