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 5925-01-583-2052
NSN 5925-00-650-1069
NSN 5999-01-139-4275
NSN 6135-01-136-8306
NSN 5895-01-388-8695
NSN 5910-01-590-4506
NSN 5998-01-359-4780
NSN 5965-01-512-1753
NSN 6150-01-260-0222
NSN 6620-01-114-9549
NSN 6150-01-199-1436
NSN 5996-00-235-9645