Hydraulic Fitting 3/8" Mj X 5/16" Fj Swivel

***PLEASE NOTE- THIS SERIES IS OFTEN REVERSED IN THE INDUSTRY. PLEASE VERIFY THE THREAD SIZE NEEDED BEFORE ORDERING*** Brand New Carbon Steel 6504-06-05 HYDRAULIC FITTING 3/8" MALE JIC X 5/16" FEMALE JIC SWIVEL (Tube O.D. / Hose I.D. Size) THREAD SIZES FOR 6504-06-05 HYDRAULIC FITTING 9/16"-18 MALE JIC X 1/2"-20 FEMALE JIC SWIVEL To measure threads, Calipers work very well.