Shaft assembly nickel plated all over per qq-n-290, except the front 0.370 in. Length, which is chrome plated per qq-c-320; 7.444 in. length extended; 7.117 in. length retracted; 2.380 in. Min and 2.860 in. Max diameter; 8 amps max. 26.0 volts dc; unit must fire at 20 vdc with a load of 150 lbs applied to receptacle catch
