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 5945-01-461-1749
NSN 6150-01-029-1705
NSN 6130-00-218-1363
NSN 4140-01-135-0998
NSN 6240-01-616-6813
NSN 6240-01-470-6387
NSN 6130-00-900-4758
NSN 5835-01-647-6426
NSN 5965-01-617-7703
NSN 6240-00-081-6889
NSN 5915-01-146-5543
NSN 5950-01-100-1193