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 7035-01-387-0493
NSN 6685-01-336-5072
NSN 6145-01-429-8529
NSN 5905-00-795-8357
NSN 6150-00-920-3033
NSN 5999-01-507-1179
NSN 5945-01-390-1745
NSN 5915-01-383-8282
NSN 5960-01-533-5162
NSN 2925-01-510-9378
NSN 6650-00-483-2853
NSN 6220-00-789-8815