Manufacturer Part#  64W-502 Spectrol

Electrical
Effective Travel: 28 turns nom
Resistance : 5K Ohm
Resistance Tolerance: 10%
Absolute Minimum Resistance: 1% or 2
Temperature Coefficient: 100 ppm/C
Power Rating:
1/2 Watt @ 70 C derated to 0 Watts @ 150C
Withstanding Voltage: 640 VAC
Insulation Resistance: 1G @ 100VAC
Contact Resistance Variation:1% or 3

Mechanical
Starting Torque: 35 mN m
Rotation Life: 200 cycles min with max change of 4% in total resistance
Resistance Element: Cermet

Environmental
Operating Temperature: −55C to +150C
Electrical Endurance: 1000 hours