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 5925-01-595-4319
NSN 6610-00-388-0094
NSN 5945-01-121-1190
NSN 5930-01-336-5615
NSN 5950-01-379-7464
NSN 6320-00-886-9771
NSN 6105-01-417-3533
NSN 4140-00-819-5917
NSN 5935-01-154-3189
NSN 5835-01-008-2992
NSN 5999-01-037-1057
NSN 6105-01-541-6230