27 ohm 5 watt cement power resistor.
Williams part #5012-10860-00. Replaces Williams part #5A-8999-1 a 2 watt resistor used on system 3 to 7 driver boards for the lamp matrix. The 2 watt resistors often burn up and should be replaced with this 5 watt resistor.
Also replaces resistors R31 to R38 on Data East CPU boards lamp driver column resistors.
Reference:
5012-10860-00
WPRK