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 6150-01-627-0012
NSN 6105-00-139-7851
NSN 5915-01-210-2400
NSN 6220-00-424-6776
NSN 6645-01-073-5302
NSN 6650-01-062-3611
NSN 5835-01-491-4613
NSN 6150-01-044-3910
NSN 5925-01-463-0305
NSN 6110-00-839-8026
NSN 5835-01-034-5206
NSN 5915-01-012-3923