PART NO. THREAD DIMENSIONS E F A B S1 S2 2S9-02 G1/8"X28 G1/8"X28 21.8 6.5 11 14 2S9-04 G1/4"X19 G1/4"X19 26.3 8 14 19 2S9-06 G3/8"X19 G3/8"X19 29 9 16 22 2S9-08 G1/2"X14 G1/2"X14 37 12 22 27 2S9-12 G3/4"X14 G3/4"X14 41.5 13.5 27 32 2S9-16 G1"X11 G1"X11 47.5 16 33 41 2S9-20 G1.1/4"X11 G1.1/4"X11 57 18.5 41 50 2S9-24 G1.1/2"X11 G1.1/2"X11 61 19 48 55