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 6650-01-579-3855
NSN 6110-00-269-2696
NSN 5905-01-560-7480
NSN 5990-01-091-3567
NSN 6130-01-457-1240
NSN 5945-00-405-3943
NSN 6320-01-578-6006
NSN 6610-01-006-3255
NSN 5945-01-033-5797
NSN 5975-01-533-3969
NSN 6150-01-346-5705
NSN 5945-01-476-0478