The Role of Military Aviation Greases in Subsonic Commercial Airplane Design

The Boeing Co. subsonic commercial airplane design practice is to use military specification greases as preferred lubricants. This standardization practice originated with the 707 prototype, and has been continued throughout design and construction stages of all commerical jet models. Based on service experience and supplementary testing, this approach has proven economical and technically beneficial to the airlines. Preferred military specifications and brief details of supplementary tests are discussed.