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 5960-00-866-9660
NSN 6685-01-054-3728
NSN 5975-00-021-7127
NSN 5998-00-456-1852
NSN 6650-01-585-8451
NSN 5895-00-926-0170
NSN 5998-00-542-9656
NSN 5999-00-151-9955
NSN 6110-01-532-8176
NSN 6620-01-125-8904
NSN 5965-01-337-0250
NSN 5935-00-025-6196