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 5960-01-419-2167
NSN 7035-01-631-9024
NSN 5975-01-502-8400
NSN 5915-00-423-7196
NSN 5998-01-091-6011
NSN 6620-01-147-0441
NSN 5950-01-645-0693
NSN 5925-01-231-1897
NSN 6650-01-321-0250
NSN 5910-00-901-6245
NSN 5935-01-616-0543
NSN 6150-00-078-7064