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 5945-01-392-1068
NSN 5975-01-464-4293
NSN 6220-01-209-4745
NSN 5945-01-145-3179
NSN 5915-01-486-3275
NSN 5910-00-410-2853
NSN 6110-01-500-7226
NSN 5930-01-645-5075
NSN 5975-01-642-1296
NSN 6685-01-513-6928
NSN 5920-01-468-0186
NSN 5905-00-642-8130