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MIL-PRF-83419 Altimeter, Servo Controlled, Automatic Pressure StandbyThis specification covers integrally-lighted altimeters that have an electromechanically servo driven pointer and a digital display of corrected altitude. The altimeters operate in the normal mode to display altitude transmitted by altitude computers or central air data computers. The altimeters incorporate an integral pressure sensor with electronic outputs to aid operation in the normal mode and to provide altitude inputs for the electronic display of pressure altitude when operated in the standby mode. The altimeters also incorporate an electrical output of barometric pressure setting which is required by some aircraft. A method is provided on the bezel of the altimeter for the selection of barometric setting to be displayed in either inches of mercury \(in. hg\) or millibars \(mb\). The altimeters are designed to operate from the following power sources: 115V, 400Hz \(primary\), 28V DC \(secondary\), and 18V DC \(battery mode\) from an optional rear mounted battery module. Altimeters meeting the requirements of this specification are interchangeable with AAU-19/A, AAU-19A/A, and AAU-19B/A, AAU-34/A, and AAU-37/A Altimeters.

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MIL-PRF-83419E
MS28105
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Cover Glass, Aircraft Instrument Dial
MS33556
-
Housing, Indicator
MS33558
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Numerals and Letters, Aircraft Instrument Dial,
Standard Form of
DEPARTMENT OF DEFENSE HANDBOOKS
MIL-HDBK-454
-
General Guidelines for Electronic Equipment
MIL-HDBK-470
-
Designing and Developing Maintainable Products
and Systems, Volume I
MIL-HDBK-781
-
Reliability Test Methods, Plans, and Environments
for Engineering Development, Qualification, and
Production
MIL-HDBK-831
-
Preparation of Test Reports
MIL-HDBK-5400
-
Electronic Equipment, Aerospace, General
Specification for
(Copies of these documents are available online at https://assist.daps.dla.mil/quicksearch/ or
from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D,
Philadelphia, PA 19111-5094.)
2.2.2 Other Government documents, drawings, and publications. The following other
Government documents, drawings, and publications form a part of the document to the extent
specified herein. Unless otherwise specified, the issues of these documents are those cited in the
solicitation or contract.
DEFENSE ELECTRONICS SUPPLY CENTER
86098-16-D-05
-
DESC Drawing, Connectors, Electrical Unshrouded
Headers (Defense Electronics Supply Ctr., OH)
(Copies of this document are available from Defense Logistics Agency, 8000 Jefferson Davis
Hwy, Richmond VA, 23297)
2.3 Non-Government publications. The following documents form a part of this
document to the extent specified herein. Unless otherwise specified, the issues of these
documents are those cited in the solicitation or contract.
AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)
ASME-Y14.100
-
Engineering Drawing and Related Documentation
Practices
(ASME documents may be obtained online at https://www.asme.org/ or from ASME
International, Three Park Avenue, New York, New York 10016-5990, USA.)
4



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