MIL-E-25670/2 Revision B, February 20, 1980
EARPHONE ELEMENT H-143/AIC
Includes all amendments and changes through Validation Notice 1, February 27, 1987
Additional Comments: CNCL S/S BY MIL-PRF-25670/2
This specification sheet is approved for use by the Air Force Acquisition Logistics Division, Directorate of Electronic Support (AFALD/PTES), Wright-Patterson AFB, Ohio, 45433, Department of the Air Force, and available for use by all Departments and Agencies of the Department of Defense.
The complete requirements for procuring the earphone element described herein shall consist of this document and the latest issue of Specification MIL-E-25670 (USAF).