Hitch Pin, Steel, 1038 and 4140, Zinc, 1/2 in Pin Dia., 5 3/4 in Usable Length/ SHANK DIAMETER: 0.500 INCHES NOMINAL ACTUATION METHOD: HANDLE END ITEM IDENTIFICATION: 4910-01-539-6129 GRIP LENGTH: 5.750 INCHES NOMINAL ACTUATION TYPE: PULL AND PUSH FEATURES PROVIDED: LOCK PIN SHOULDER TO HEAD END DISTANCE: 0.750 INCHES NOMINAL PIN ATTACHMENT TYPE: CABLE LANYARD W/TERMINATIONS PART NAME ASSIGNED BY CONTROLLING AGENCY: HITCH PIN MATERIAL: STEEL COMP 1038 OVERALL OR STEEL COMP 4140 SURFACE TREATMENT: ZINC OVERALL STYLE DESIGNATOR: Q250 RING HANDLE