PART NO. THREAD TUBE O.D. DIMENSIONS E F D A B L S1 S2 1QT-10-02SP M10X1 R1/4"X19 5 12 10 28 12 14 1QT-14-04SP M14X1.5 R1/4"X19 8 17 14.5 37.5 17 17 1QT-14-06SP M14X1.5 R3/8"X19 8 17 15 38 19 17 1QT-16-04SP M16X1.5 R1/4"X19 10 18 14.5 38.5 17 19 1QT-16-06SP M16X1.5 R3/8"X19 10 18 15 39 19 19 1QT-18-04SP M18X1.5 R1/4"X19 12 18 14.5 38.5 19 22 1QT-18-06SP M18X1.5 R3/8"X19 12 18 15 39 19 22 1QT-22-08SP M22X1.5 R1/2"X14 14 19.5 20 47.5 24 27 1QT-27-08SP M27X1.5 R1/2"X14 18 20 20 50 30 32 1QT-27-12SP M27X1.5 R3/4"X14 18 20 20 50 30 32 1QT-30-12SP M30X1.5 R3/4"X14 20 23 20 54 32 36 1QT-33-12SP M33X2 R3/4"X14 22 26 20 57 36 41 1QT-36-16SP M36X2 R1"X11 25 25 25.5 61.5 38 41 1QT-39-16SP M39X2 R1"X11 28 26 25.5 64.5 41 46 1QT-45-20SP M45X2 R1.1/4"X11 34 28.5 26.5 70 50 50 Note: In case if you are interested to order the adapter in complete set with sleeve and nut ,it is necessary to insert suffix "RN" after our part no.,for example 1QT-18-06SP/RN