2b mounting facility hole thread class 16 mounting facility hole thread quantity per inch protected against corrosion, heat, and vibration unc mounting facility hole thread series
Used on type no. 489. 2.000" overall length 4.125" overall width 3cw ratchet mechism 1; ccw ratchet mechism 1; control contacts 2; tension spring 1; solder tubes 2; start push button 1; stop-reset push button 1; two 5/16 in. slots spaced 3-5/8 in. c to c on horizontal ctr line; type no. avr-525, used as mtg base assy
Used on type no. 489. 2.000" overall length 4.125" overall width gcw ratchet mechism 1; ccw ratchet mechism 1; control contacts 2; tension spring 1; solder tubes 2; reset push button 1; two 5/16 in. slots spaced 3-5/8 in. c to c on horizontal cntr line; p/o overload relay