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 5999-00-666-0241
NSN 5915-01-394-3860
NSN 4140-01-501-6031
NSN 5965-01-389-1068
NSN 6150-01-118-8095
NSN 5835-00-475-9271
NSN 2925-01-448-2880
NSN 6650-01-565-4594
NSN 5910-01-577-4546
NSN 6650-01-290-1029
NSN 7035-01-057-2402
NSN 7035-00-546-2560