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 5920-00-427-2985
NSN 6145-00-236-9504
NSN 5999-00-149-0624
NSN 6610-01-475-1921
NSN 7035-01-092-5723
NSN 5960-01-474-4843
NSN 5920-00-513-4546
NSN 5975-00-956-6105
NSN 5930-01-003-9174
NSN 5945-01-508-4344
NSN 6220-00-541-8515
NSN 5998-01-276-8183