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 7035-00-703-3535
NSN 5895-01-029-3791
NSN 2925-01-554-5246
NSN 6105-01-521-3937
NSN 6220-00-736-2617
NSN 6620-01-412-0938
NSN 5998-01-365-1139
NSN 4140-01-250-2600
NSN 5935-01-565-8617
NSN 7035-00-008-1809
NSN 5925-00-081-8720
NSN 5855-00-127-5559