PART NO. THREAD DIMENSIONS E F A B S1 S2 2S4-02 G1/8"X28 G1/8"X28 19 6.5 11 14 2S4-04 G1/4"X19 G1/4"X19 21.8 8 14 19 2S4-06 G3/8"X19 G3/8"X19 24 9 16 22 2S4-08 G1/2"X14 G1/2"X14 29.5 12 22 27 2S4-12 G3/4"X14 G3/4"X14 32.8 13.5 27 32 2S4-16 G1"X11 G1"X11 37 16 33 41 2S4-20 G1.1/4"X11 G1.1/4"X11 44.5 18.5 41 50 2S4-24 G1.1/2"X11 G1.1/2"X11 47.5 19 48 55