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 5920-01-057-7494
NSN 6650-01-322-4415
NSN 6320-01-466-4175
NSN 5935-01-485-6625
NSN 6150-01-117-4773
NSN 5905-01-602-9868
NSN 6620-01-171-2505
NSN 5985-01-108-4328
NSN 5985-01-427-9852
NSN 6105-01-411-6609
NSN 5990-00-069-2221
NSN 6610-00-492-9872