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 5855-01-068-3683
NSN 6145-01-558-5017
NSN 6220-00-771-9109
NSN 6130-00-005-7033
NSN 6650-00-945-9105
NSN 5985-01-226-5065
NSN 5920-01-209-6368
NSN 6610-00-518-4919
NSN 5835-00-016-3671
NSN 6650-01-145-9570
NSN 6130-00-073-2994
NSN 5895-01-145-4419