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 6130-01-317-2328
NSN 5925-00-523-2755
NSN 5950-00-891-9554
NSN 5915-01-398-0633
NSN 5965-01-129-6501
NSN 2925-01-198-7528
NSN 5835-00-153-4100
NSN 5999-01-537-0533
NSN 5920-01-162-0750
NSN 5998-01-067-7970
NSN 5985-01-276-9986
NSN 5930-01-231-2011