MIL-PRF-5636E, PERFORMANCE SPECIFICATION: VALVE, LUBRICATING OIL COOLER, TEMPERATURE REGULATING WITH SURGE PROTECTION GENERAL SPECIFICATION FOR (26 SEP 2008) [SUPERSEDING MIL-V-5636C]., This is a general specification for temperature regulating with surge protection lubricating oil cooler valves, incorporating oil pressure relief bypass, for use on oil coolers using petroleum or synthetic base lubricating oils.