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 5920-00-929-8095
NSN 5855-01-384-4914
NSN 5998-01-058-8723
NSN 6685-00-642-0533
NSN 5835-00-007-6824
NSN 5965-01-119-1898
NSN 6685-01-634-0611
NSN 5915-01-262-4771
NSN 6150-01-494-9883
NSN 6645-01-467-9983
NSN 5998-01-286-4261
NSN 5910-01-281-7666