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 5895-00-881-9961
NSN 5945-00-244-1579
NSN 5915-00-291-3736
NSN 5915-01-372-0960
NSN 6240-01-370-4789
NSN 5835-00-451-2982
NSN 5915-00-104-3119
NSN 5930-01-521-4824
NSN 4140-01-142-5849
NSN 6240-01-629-4491
NSN 2925-01-151-6969
NSN 5996-00-925-0173