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 5996-01-577-3838
NSN 5960-00-055-3358
NSN 5910-01-419-6765
NSN 6320-00-553-8427
NSN 5915-01-119-6919
NSN 6610-01-114-7176
NSN 5945-01-599-6163
NSN 6240-01-452-1842
NSN 6650-01-651-0440
NSN 5935-00-276-9399
NSN 5855-00-337-3679
NSN 6610-00-735-7401