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 6105-01-448-4701
NSN 6150-01-364-8688
NSN 5998-01-648-1700
NSN 6110-01-394-5302
NSN 5996-00-389-0065
NSN 6150-01-503-9147
NSN 6610-00-113-4552
NSN 2925-00-338-4667
NSN 5996-01-252-8275
NSN 6105-00-228-7031
NSN 5835-01-642-4705
NSN 7035-01-210-5111