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 5945-01-408-5829
NSN 6650-00-670-2516
NSN 5960-01-089-4019
NSN 6645-00-595-5431
NSN 5930-01-013-7895
NSN 6110-01-156-0388
NSN 6135-01-136-8306
NSN 6135-01-375-6724
NSN 6320-01-536-3077
NSN 6110-00-188-9874
NSN 6220-01-625-4476
NSN 2925-00-519-5292