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 6150-01-309-7482
NSN 5930-01-096-4402
NSN 6645-00-881-9978
NSN 6685-00-781-3939
NSN 5965-01-121-6135
NSN 5935-00-727-2647
NSN 5935-01-406-3486
NSN 6685-00-421-2508
NSN 6645-01-089-6459
NSN 5998-01-511-4933
NSN 5998-01-158-6067
NSN 7035-01-541-5414