Nha is extension assembly, p/n 4kk653; m8 type thread; specific treatment is dacromet 500b black; screw is a property class 10.9
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.
NSN 5945-00-882-6600
NSN 5915-01-633-9845
NSN 5990-01-485-0260
NSN 5999-01-248-0449
NSN 5920-01-423-8595
NSN 5960-01-502-6270
NSN 5965-01-119-1898
NSN 5985-01-376-7051
NSN 5930-01-585-3972
NSN 6240-00-001-1524
NSN 6145-01-587-6267
NSN 5950-01-594-6456