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 5835-01-183-7467
NSN 7035-00-616-4410
NSN 5950-01-520-4000
NSN 6650-01-272-8864
NSN 5950-01-083-1832
NSN 6320-00-404-3637
NSN 5930-01-400-6126
NSN 5925-01-393-5755
NSN 5945-00-517-2494
NSN 5965-00-236-0016
NSN 6110-01-381-1269
NSN 4140-00-761-6249