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 6220-01-257-5182
NSN 5945-00-244-8430
NSN 6240-01-273-0193
NSN 6150-01-345-9649
NSN 5915-01-391-7830
NSN 5965-01-023-9359
NSN 5930-01-145-4646
NSN 5930-01-368-2245
NSN 5965-01-467-5471
NSN 6240-01-347-3338
NSN 6110-01-111-8762
NSN 6150-01-199-6289