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 6130-01-324-3432
NSN 6610-01-514-0745
NSN 5920-01-439-0750
NSN 5835-00-490-0530
NSN 7035-00-915-5798
NSN 6130-01-523-4489
NSN 6130-01-546-7759
NSN 5945-01-534-7275
NSN 5945-00-433-4961
NSN 6240-00-449-2070
NSN 5965-01-013-0290
NSN 6105-00-393-0634