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 5895-01-496-7897
NSN 5935-01-512-8420
NSN 5965-00-577-1242
NSN 5915-00-204-4660
NSN 6105-01-224-7258
NSN 4140-01-474-7950
NSN 5965-01-121-6135
NSN 4140-00-189-0235
NSN 4140-01-433-3839
NSN 6150-00-857-6896
NSN 5945-01-182-0198
NSN 5930-01-108-0261