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 5999-01-323-5355
NSN 5915-00-269-4463
NSN 6105-01-502-3024
NSN 5930-01-120-3591
NSN 5835-01-055-6063
NSN 5945-01-209-0990
NSN 6650-01-067-0132
NSN 5925-01-131-9776
NSN 5925-01-634-0664
NSN 5835-01-214-5402
NSN 6220-01-281-2566
NSN 6645-00-485-1440