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 5965-01-046-9619
NSN 5998-01-287-9771
NSN 5999-01-196-7746
NSN 5945-01-338-0991
NSN 6620-01-165-3784
NSN 6240-01-207-2120
NSN 5935-00-012-0296
NSN 6650-01-474-0249
NSN 6145-00-959-7610
NSN 6150-01-279-4221
NSN 5965-01-447-8821
NSN 6650-01-498-9928