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 5935-00-887-6122
NSN 5895-01-230-3960
NSN 6240-01-319-7119
NSN 6645-00-893-4190
NSN 5960-01-599-9821
NSN 5975-01-625-6416
NSN 5965-01-433-9864
NSN 5965-00-594-3115
NSN 6650-00-283-0978
NSN 5895-01-625-7032
NSN 5998-00-968-4809
NSN 6105-01-573-8234