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 5915-01-586-4999
NSN 6145-00-202-8570
NSN 5915-00-291-3736
NSN 6620-01-012-2852
NSN 6105-00-865-1517
NSN 5945-01-105-1901
NSN 5915-00-265-0967
NSN 6610-01-047-4466
NSN 5915-01-151-3057
NSN 6685-00-133-2288
NSN 5925-01-227-5536
NSN 7035-01-589-2629