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 5915-00-291-3736
NSN 6105-01-651-9902
NSN 6220-01-151-0835
NSN 6150-00-701-7880
NSN 6320-01-607-1491
NSN 6145-01-506-0672
NSN 5895-01-222-1426
NSN 5960-00-252-6274
NSN 6650-01-555-8349
NSN 6240-01-296-8997
NSN 5895-01-556-7386
NSN 5985-00-229-2929