min. ambient temp.=-65.0 deg. f.; insulation resistance=500 megohms min.at 500 vdc coil ground; weight=1.0 lb.max.; internal spring data: spring rate=32.0 lbs. per in.; spring force at 0.250 in. stroke=8.0 lbs. min.; solid outside dia.=0.181 in. max.; free inside dia.=0.109 in. min.; solid height=1.000 in. max.; wire dia.=0.026 in.; free height=1.750 in.; mounting holes cskto 0.268 in. dia. by 90.0 deg.