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 5960-01-514-5433
NSN 7035-01-574-0062
NSN 6650-01-423-2834
NSN 6320-00-456-0836
NSN 5910-01-293-9110
NSN 6110-01-386-3093
NSN 5835-00-870-7034
NSN 5935-01-199-4026
NSN 6145-01-182-3448
NSN 6240-01-206-4809
NSN 5855-01-418-0089
NSN 5935-01-573-9025