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 5915-00-658-2689
NSN 6150-01-369-7589
NSN 5835-00-823-6116
NSN 6145-01-317-7445
NSN 5835-01-606-8768
NSN 6650-00-299-9681
NSN 6150-00-497-6927
NSN 5835-01-200-7153
NSN 6320-01-643-0850
NSN 6110-00-099-7113
NSN 6135-01-036-3495
NSN 6130-01-362-8074