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 6135-01-477-5259
NSN 6130-00-119-3149
NSN 5935-00-584-6441
NSN 5905-01-464-3833
NSN 5835-01-507-0731
NSN 5855-01-147-6024
NSN 6145-01-099-0448
NSN 5910-00-621-7808
NSN 5950-01-317-3552
NSN 5999-01-495-1940
NSN 6650-01-409-1992
NSN 6650-01-225-6699