MIL-PRF-83483 is a military specification for a thread compound designed to prevent seizing, galling and corrosion on threaded fasteners. The specification outlines the testing procedures, manufacturing requirements, inspection methods, and performance criteria that manufacturers need to follow to meet the standard. Used in aircraft and aerospace applications, where high strength, flexibility, and corrosion resistance are critical. It can also be used in other industries requiring high-performance compounds. Composed of molybdenum disulfide and petrolatum. The most recent version of the spec is MIL-PRF-83483E, with several updates and amendments made previously. Common applications include military aircraft engine spark plugs, threaded fasteners and fittings.