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MIL-PRF-14107 Lubricating Oil, Weapons, Low TemperatureThis specification covers a preservative lubricating oil for aircraft and ground small arms weapons at emperatures between 0 deg. to -70 deg. F \(-17.8 deg. to -56.6 deg. C\). This lubricating oil is identified by Military symbol LAW and North Atlantic Treaty Organization \(NATO\) Code Number 0-157.

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MIL-PRF-14107D
or exceeds the operating and environmental requirements, and promotes
economically advantageous life cycle costs.
3.3 Operating requirements. The oil shall provide the operating
capabilities as specified in 3.3.1 through 3.3.10.
3.3.1 Hydrolytic stability. The lubricating oil shall demonstrate it
is stable when in contact with water.
3.3.2 Swelling of synthetic rubber. The oil shall cause no more than
a 25% increase in the volume of NBR-L rubber, per SAE AMS 3217/2,
when the rubber is submerged in the oil.
3.3.3 Flash point. The minimum flash point for the oil shall be 305oF
(162.7oC).
3.3.4 Pour point. The lowest pour point of the oil shall be no higher
than -75oF (-59.4oC).
3.3.5 Neutralization number. The neutralization number of the oil
indicating the acidic or basic content shall not exceed 1.
3.3.6 Viscosity. The kinematic viscosity of the oil in centistokes at
100oF (37.8oC), shall be a minimum of 5.8 and at -65oF (-54oC), shall
be a maximum  of 950.
3.3.7 Precipitation. The maximum precipitation number of the
insoluble materials in the oil shall not exceed 0.05 ml.
3.3.8 Evaporation loss. The evaporation loss of the oil at 210oF
(98.9oC) shall not exceed 10%.
3.3.9 Lubricating durability. The oil, when applied to a M60 machine
gun, shall prevent the gun from seizing and not reduce the cyclic
rate of fire by more than 75 rounds per minute.
3.3.10 Physical appearance. The oil shall be clear and uniform in
appearance and shall show no evidence of sediment or separated
matter.
3.4 Environmental requirements. The oil shall function under the
environmental conditions specified in 3.4.1 through 3.4.3.2 without
degradation or loss of performance.
3.4.1 Corrosion protection. The oil shall inhibit ferrous metals from
rusting after exposure to 400 hours in a high humidity environment.
3.4.2 Oxidation stability. The oil shall provide stability from
oxidation when exposed to metals.
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