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 6650-01-585-9249
NSN 5999-00-781-7222
NSN 5910-01-350-7865
NSN 5935-00-144-8017
NSN 5835-01-102-9660
NSN 6135-01-574-6577
NSN 6685-01-374-5573
NSN 5965-01-495-1170
NSN 5925-01-459-7882
NSN 5945-00-689-3088
NSN 5895-00-408-0398
NSN 5935-00-132-3491