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 6105-01-565-7460
NSN 5999-01-014-5981
NSN 6320-01-453-5152
NSN 6610-01-020-3764
NSN 6320-01-481-7322
NSN 5935-01-114-5557
NSN 6685-01-528-7528
NSN 5965-01-155-3131
NSN 5910-01-039-0150
NSN 6110-01-165-1669
NSN 5920-00-296-9869
NSN 5910-00-903-2760