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 5965-00-630-7872
NSN 5895-01-506-2725
NSN 6240-01-145-3931
NSN 6650-00-193-7358
NSN 5905-01-528-7351
NSN 5999-00-279-9282
NSN 5965-01-623-1408
NSN 5915-00-963-1456
NSN 6105-01-571-5862
NSN 6145-00-905-5374
NSN 5855-01-614-3207
NSN 6650-01-210-5090