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 7035-00-946-2642
NSN 6105-01-511-0918
NSN 5920-01-485-4628
NSN 6650-01-425-7362
NSN 5945-00-270-4785
NSN 6110-01-417-8928
NSN 6645-00-067-7070
NSN 5935-00-244-0935
NSN 5930-00-216-7511
NSN 5998-00-332-9558
NSN 5915-01-075-0006
NSN 6645-01-185-7684