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 5999-01-206-5414
NSN 6135-00-753-2276
NSN 6105-01-425-1718
NSN 2925-01-544-4880
NSN 6110-01-560-7938
NSN 5945-01-268-3839
NSN 7035-00-973-9215
NSN 6620-00-065-3235
NSN 5965-00-554-4138
NSN 6150-00-226-1868
NSN 5999-01-062-0739
NSN 6220-01-131-5295