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 6620-00-545-5689
NSN 5950-00-683-8304
NSN 6105-01-322-8944
NSN 5965-00-142-9052
NSN 5996-01-417-8669
NSN 5935-01-634-0668
NSN 6150-01-219-9579
NSN 5935-01-061-9748
NSN 7035-00-803-3056
NSN 5950-00-675-5941
NSN 5999-01-010-6617
NSN 5935-01-634-0668