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 5895-01-572-8746
NSN 6135-00-416-2898
NSN 6150-00-331-6351
NSN 5915-00-462-0847
NSN 7035-01-177-2807
NSN 6650-01-505-5531
NSN 5950-00-431-5985
NSN 5945-01-481-0579
NSN 5925-01-425-1842
NSN 6145-01-283-1262
NSN 6220-01-388-2624
NSN 5950-01-499-4787