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 5895-01-448-8600
NSN 6650-01-509-5936
NSN 5915-01-311-8422
NSN 5930-01-376-1383
NSN 5895-01-015-4312
NSN 5945-01-415-0603
NSN 5835-00-885-6030
NSN 6150-01-116-4006
NSN 6105-00-998-7113
NSN 5835-00-223-7235
NSN 5920-01-210-7129
NSN 5998-00-146-7033