30.5mm Type 4/4X/13 3 Pos. PB-Non-Illum., Mushrm Hd (Push-Pull), Blue, OUT/CNTR/IN-Mom/Maint/Maint, 1 NCLB-1 NC

30.5mm Type 4/4X/13 3 Pos. PB-Non-Illum., Mushrm Hd (Push-Pull), Blue, OUT/CNTR/IN-Mom/Maint/Maint, 1 NCLB-1 NC