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 5965-01-398-9579
NSN 5855-00-087-7833
NSN 5935-01-183-5361
NSN 7035-00-270-5519
NSN 6145-00-526-3056
NSN 6110-01-395-0622
NSN 5920-01-207-4729
NSN 5996-01-240-7085
NSN 5960-00-101-5461
NSN 6220-01-545-0299
NSN 5999-01-272-3866
NSN 6650-01-071-9011