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 6650-00-628-2018
NSN 5945-01-259-9782
NSN 6620-01-436-2715
NSN 6105-01-617-9713
NSN 5965-01-003-2641
NSN 5985-00-791-9777
NSN 6150-00-912-9503
NSN 5855-01-492-4922
NSN 5925-01-323-4173
NSN 5930-01-483-0470
NSN 5835-01-557-9062
NSN 6135-01-445-6589