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 6320-01-352-8084
NSN 4140-01-415-7988
NSN 5895-01-096-4860
NSN 5855-00-058-1293
NSN 5985-01-069-2886
NSN 5905-00-246-4057
NSN 6220-01-138-1622
NSN 5905-01-127-2056
NSN 6105-01-603-5076
NSN 5990-01-434-7913
NSN 6685-01-599-8468
NSN 6610-01-193-2169