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 6105-01-461-3213
NSN 6135-00-880-1026
NSN 5985-01-133-3290
NSN 5960-00-538-6872
NSN 5930-01-527-7845
NSN 5945-00-895-9478
NSN 7035-00-153-3826
NSN 5996-00-277-7384
NSN 5965-00-182-7928
NSN 5855-00-058-1293
NSN 6240-01-621-1117
NSN 5855-01-308-0955