MIL-C-228A, MILITARY SPECIFICATION: CIRCLES, AZIMUTH; AND CIRCLES, BEARING (21 NOV 1952) [NO S/S DOCUMENT]., This specification covers azimuth and bearing circles for use in the accurate determination, of the bearings of terrestrial objects and the azimuths of celestial bodies.Product Code:SAE AMSM3171
Title:Magnesium Alloy, Processes for Pretreatment and Prevention of Corrosion on
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This specification covers general requirements for the apparatus, material, and procedures to be used in the processing of magnesium base alloys for the purpose of increasing their corrosion resistance and by producing surfaces suitable for organic paint finish systems.