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 5930-01-021-6319
NSN 6240-00-261-8430
NSN 5855-01-268-6468
NSN 6105-00-722-6716
NSN 5945-01-426-8747
NSN 5920-01-188-6458
NSN 5855-01-031-4729
NSN 6240-01-028-0341
NSN 5910-01-452-6746
NSN 6320-00-790-4844
NSN 6240-00-954-0124
NSN 5965-01-582-2182