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 5915-01-196-6016
NSN 5905-01-391-3700
NSN 4140-01-309-4926
NSN 6320-00-456-0836
NSN 6105-00-488-8869
NSN 5960-01-089-8155
NSN 6645-01-108-7904
NSN 5925-01-467-9910
NSN 5965-01-597-6295
NSN 7035-01-442-3987
NSN 5905-01-382-9671
NSN 4140-01-044-8808