Specification Specification Description
AN-C-53-I White lead based (obsolete)
AN-VV-C-566-2 Mica based (obsolete specification)
MIL-A-13881C AASC-M-2 Mica based for use on threaded fittings. High temperature. 40% mica in mineral oil
MIL-M-7866C Molybdenum Disulfide powder. This is an ingredient specification only for Moly anti-seize.
UK-DTD-392B Molybdenum Disulfide powder. This is an ingredient specification only for Moly anti-seize
MIL-T-5544C SAE-AMS-2518 Thread Compound, Graphite-Petrolatum. Electrically conductive.
MIL-PRF-907E High temperature applications, specially formulated for steel threads
MIL-A-907 obsolete - see MIL-PRF-907E.
MIL-T-83483B NATO: S-722 Moly (50%) Low friction. press fits and protects equipment during break-in and under high static load.
MIL-T-22361 Special zinc powder and petrolatum grease mix protects aluminum and ferrous surfaces.
Moly is used for extreme pressure (up to 500,000 psi) to prevent seizing and galling. As an anti-seize, Moly is typically mixed with petrolatum(Vaseline) in the ratio of 50-50 to qualify to the military specification MIL-PRF-83483. Commercial grade usually has less moly and more filler (petroleum).
Moly anti-seize is used in static loads such as pressed fits, high-pressure and low speed, such as splines, lobes, and rotary threads.
In applications requiring extremely high load bearing capability AND later oil lubrication, a moly based grease is best. Typical application is a break-in lube to prevent galling and seizing during the sensitive period when sliding parts are forming compatible mating surfaces. Actuators and Acme threads that transfer motion often use a moly based grease.
An example is using a moly grease as an assembly lube on camshaft lobes and valve guides. The moly prevents initial galling as the two surfaces first come in contact. The grease provides a transition to oil lubrication as the engine's lubrication system takes over.
There are two areas where moly grease is never used: ball bearings, and fluid film bearings (engine rod and main). Both applications depend on oil films. Moly particles just get in the way. So do graphite particles for that matter.
"This product should not be used on titanium or titanium alloys." per United Kingdom, Ministry of Defense, Defense Standard 80-81, Issue 3. "Anti-Seize Compound, Molybdenum Disulfide"
