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 5999-01-469-2748
NSN 5915-00-364-7791
NSN 5975-01-462-6508
NSN 6685-01-212-8090
NSN 5910-01-250-5759
NSN 6650-01-601-3806
NSN 6685-01-060-3179
NSN 5835-01-209-6410
NSN 6150-00-789-3738
NSN 5998-01-392-1907
NSN 6685-01-252-8887
NSN 5920-01-445-7000