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 6130-01-274-5852
NSN 5945-00-835-6739
NSN 5835-01-616-6131
NSN 5985-00-251-0246
NSN 5910-00-385-1149
NSN 5910-01-120-8757
NSN 5910-01-337-0038
NSN 6685-01-383-1919
NSN 5999-00-924-4761
NSN 5998-01-478-2680
NSN 6685-01-233-8415
NSN 5990-01-091-3567