6400-20-24 HYDRAULIC FITTING 1 1/4" MALE JIC X 1 1/2" MALE BOSS (Tube O.D. / Hose I.D. Size)
THREAD SIZES FOR 6400-20-24 HYDRAULIC FITTING 1 5/8"-12 MALE JIC X 1 7/8"-12 MALE BOSS
To measure threads, Calipers work very well.