Used on grumman a10 aircraft
An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also locknut, pipe; nut (1), tube coupling and nut (1), plain, hexagon.
NSN 6610-01-255-4544
NSN 6240-01-465-3053
NSN 6145-00-081-1073
NSN 6220-00-232-4436
NSN 5998-01-462-1920
NSN 5996-01-464-9791
NSN 5960-01-043-2736
NSN 6610-01-540-8521
NSN 5935-01-359-5699
NSN 5855-01-519-7929
NSN 5945-00-148-8285
NSN 5965-01-381-2527