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 7035-00-104-7613
NSN 6105-00-706-9468
NSN 5990-01-170-0077
NSN 6130-01-269-4498
NSN 5996-00-722-4944
NSN 6150-01-429-2925
NSN 5835-01-202-1376
NSN 6620-01-104-5758
NSN 5945-01-321-7410
NSN 5915-01-347-9985
NSN 6220-00-546-1836
NSN 5990-00-756-2555