MIL-I-45631 Complete Document History
Indicator, Azimuth, m20, m21, m27, m28, m28a1, m30 and m31, Packaging of (Use MIL-P-14232)


Obsolete Revision Information:
   NOT - INDICATOR, AZIMUTH,M20,M21,M27 - Oct. 17, 1967
   BASE - INDICATOR, AZIMUTH,M20,M21,M27 - Jan. 1, 1960