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 5998-01-594-2230
NSN 2925-00-471-1128
NSN 6610-01-312-3032
NSN 5915-00-532-7023
NSN 5910-00-964-9981
NSN 6130-01-442-6052
NSN 4140-01-632-4531
NSN 6110-01-572-1043
NSN 5990-01-606-9305
NSN 5950-01-091-6967
NSN 4140-00-253-1801
NSN 5996-01-058-8227