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 6610-00-647-3830
NSN 6650-00-505-6015
NSN 6150-00-736-0327
NSN 6610-01-437-2506
NSN 5855-01-234-5346
NSN 5910-01-235-2930
NSN 5895-01-657-0040
NSN 6150-01-024-3824
NSN 5935-01-616-8086
NSN 6620-01-146-4680
NSN 6610-00-325-0485
NSN 5915-01-620-4302