Used on truck mounted crane. 2a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch zinc surface treated single joint, elbow design un all ends thread series
swivel joint shall conform to mil-j-5513; topcoat color green 383 per spec mil-c-46168 or mil-c-53039; dry film thickness 1.8 mils min.; mounting holes on first leg 0.937 in from end, 0.265 in. dia, 4 places; swivel on first end; ms-35649 nut, plain, hexagon, machine screw, unc-2b paint surface treated single joint, double elbow design