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 7035-01-380-6538
NSN 5965-01-189-2421
NSN 6620-01-193-1681
NSN 6150-01-364-0812
NSN 5975-00-442-9533
NSN 5950-00-178-8514
NSN 6130-01-513-8072
NSN 5930-00-312-5399
NSN 5910-01-607-6388
NSN 6650-01-369-0613
NSN 7035-01-640-9889
NSN 5905-01-032-4866