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 5920-01-215-4741
NSN 5920-01-556-6192
NSN 5895-00-601-0516
NSN 6105-00-790-7056
NSN 6145-01-426-6657
NSN 5950-01-113-7834
NSN 5950-00-156-2220
NSN 6105-00-314-5602
NSN 5935-01-140-9146
NSN 5996-01-498-4336
NSN 5950-00-601-1683
NSN 5835-01-647-6426