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 5915-00-405-0167
NSN 6135-01-619-1582
NSN 5985-01-205-8599
NSN 7035-01-649-8134
NSN 5835-01-081-6864
NSN 5999-01-422-2939
NSN 6320-01-148-8125
NSN 5915-00-284-5430
NSN 6150-00-252-2316
NSN 5960-00-415-1797
NSN 6105-01-189-0278
NSN 5945-01-619-8986