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 5945-00-629-1340
NSN 6650-01-505-6947
NSN 5835-01-123-8305
NSN 7035-00-193-2269
NSN 6620-01-605-2590
NSN 6645-00-385-3684
NSN 5905-00-161-7355
NSN 5975-01-032-5982
NSN 6620-00-779-5859
NSN 6130-01-344-7319
NSN 7035-00-185-8683
NSN 6320-01-466-4175