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 5950-00-824-3688
NSN 2925-01-282-3206
NSN 5915-00-244-1702
NSN 6610-01-165-7024
NSN 5925-01-571-5799
NSN 7035-01-178-9354
NSN 5905-01-648-0776
NSN 5915-01-156-4226
NSN 6650-00-809-1817
NSN 5950-00-003-5338
NSN 5835-00-830-6416
NSN 6130-00-899-4675