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 5960-00-016-0372
NSN 6685-01-484-6440
NSN 5998-01-045-3440
NSN 6650-01-490-0281
NSN 5930-01-083-2206
NSN 6240-00-196-4518
NSN 5895-01-492-6233
NSN 7035-01-621-0097
NSN 6130-00-076-1469
NSN 5930-01-075-1490
NSN 5999-01-546-3613
NSN 5945-01-306-9610