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 5965-01-504-6139
NSN 5910-00-533-6345
NSN 6105-01-262-4354
NSN 6610-01-436-5236
NSN 6145-01-466-3670
NSN 5895-01-119-8668
NSN 5930-00-677-2813
NSN 5950-01-516-8039
NSN 6320-01-355-3998
NSN 6105-01-574-7361
NSN 6110-00-035-8794
NSN 2925-01-197-7864