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 6610-00-244-6741
NSN 6620-00-787-6683
NSN 6105-01-063-7704
NSN 5835-00-102-2373
NSN 5930-00-965-5515
NSN 6610-01-148-6474
NSN 5945-00-438-7896
NSN 5920-01-288-8862
NSN 5999-00-366-9124
NSN 6220-00-247-4859
NSN 5950-00-179-9888
NSN 5915-00-142-6912