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 6240-00-624-8440
NSN 5950-01-274-1447
NSN 6135-01-461-2915
NSN 6105-00-097-8131
NSN 6240-01-161-5007
NSN 6620-00-035-5813
NSN 5920-00-701-1200
NSN 5835-01-647-6426
NSN 6110-01-052-5662
NSN 5930-00-824-1171
NSN 5935-01-070-2660
NSN 5999-00-420-1483