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MIL-PRF-14107 is a United States military performance specification that dictates the requirements for a low-temperature preservative lubricating oil for both aircraft-mounted and ground-based small arms weapons.
This light-coloured, synthetic-based oil (formerly MIL-L-14107) is critical for ensuring the efficient and reliable firing of weapons in extreme cold conditions, where standard oils would struggle or cause jamming. It is formulated to provide excellent low-temperature fluidity and act as a preservative to protect metal surfaces from corrosion, particularly in high-altitude or subzero environments.
The lubricating oil meeting MIL-PRF-14107 is identified by the military symbol LAW and is intended for use on the main mechanisms of various weapon systems, including:
The specification requires the oil to function efficiently across a broad temperature range, typically from -70°F to 0°F (approx. -56°C to -18°C).
Unlike some other specifications, MIL-PRF-14107 covers a single lubricant type defined by its low-temperature performance and function as a weapons preservative.
The primary classification is identified by:
It's crucial to consult the latest version of the MIL-PRF-14107 specification (currently MIL-PRF-14107D) for the most accurate and up-to-date information.
MIL-PRF-14107 is cross-referenced using the following international and military codes:
Note: There are no widely cited UK Defense or French specifications cross-referenced in the same way for this particular specification.
