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 5998-01-238-6218
NSN 6240-00-233-3481
NSN 5835-01-485-0210
NSN 5935-01-471-6808
NSN 6105-01-077-4927
NSN 5945-00-300-0903
NSN 6135-01-433-2062
NSN 6320-01-301-4699
NSN 5935-01-450-0136
NSN 5920-01-447-1445
NSN 6650-00-891-4534
NSN 6110-01-199-6056