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 5945-01-155-5534
NSN 6610-01-285-4673
NSN 5975-01-011-5521
NSN 6650-00-140-2353
NSN 5930-00-903-4610
NSN 6320-00-823-2015
NSN 5935-01-182-2404
NSN 6110-01-151-4849
NSN 5965-01-595-6134
NSN 6650-01-334-9410
NSN 5935-01-235-6867
NSN 6650-01-554-2824