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 6610-01-141-7014
NSN 5905-01-298-7487
NSN 5999-00-558-7305
NSN 5920-01-095-4519
NSN 6130-00-949-2673
NSN 6650-01-084-7377
NSN 5935-01-634-0668
NSN 5945-01-365-7667
NSN 2925-00-201-8247
NSN 5998-01-439-8152
NSN 6135-01-462-6040
NSN 5950-01-067-7400