PART NO. THREAD TUBE O.D. O-RING DIMENSIONS E F D F A B L S1 S2 1QG-14-04 M14X1.5 G1/4"X19 8 10.77X2.62 17 10 35 19 17 1QG-14-06 M14X1.5 G3/8"X19 8 13.94X2.62 17 11.5 39 22 17 1QG-16-06 M16X1.5 G3/8"X19 10 13.94X2.62 18 11.5 40 22 19 1QG-18-06 M18X1.5 G3/8"X19 12 13.94X2.62 18 11.5 40 22 22 1QG-18-08 M18X1.5 G3/8"X19 12 13.94X2.62 18 14 45 27 22 1QG-22-06 M22X1.5 G3/8"X19 14 13.94X2.62 19.5 11.5 41.5 24 27 1QG-24-08 M22X1.5 G1/2"X14 16 17.12X2.62 20 14 47 27 30 1QG-27-06 M27X1.5 G3/8"X19 18 13.94X2.62 20 11.5 44 30 32 1QG-30-06 M30X1.5 G3/8"X19 20 13.94X2.62 23 11.5 48 32 36 1QG-30-12 M30X1.5 G3/4"X14 20 23.47X2.62 23 15.5 52.5 32 36 1QG-33-16 M33X2 G1"X11 22 29.74X3.53 26 18 60 41 41 1QG-36-06 M36X2 G3/8"X19 25 13.94X2.62 25 11.5 50 38 41 1QG-39-06 M39X2 G3/8"X19 28 13.94X2.62 26 11.5 53 41 46 1QG-39-16 M39X2 G1"X11 28 29.74X3.53 26 18 60 41 46 1QG-45-06 M45X2 G3/8"X19 34 13.94X2.62 28.5 11.5 55.5 46 50 1QG-45-20 M45X2 G1.1/4"X11 34 37.69X3.53 28.5 20 66.5 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 1QG-18-08RN