INCH-POUND
MIL-DTL-5421D
5 April 2011
SUPERSEDING
MIL-DTL-5421C
13 July 2007
DETAIL SPECIFICATION
TUBES, PITOT, ELECTRICALLY HEATED, AIRCRAFT
Inactive for new design after 5 May 1999.
This specification is approved for use by all departments and agencies of the Department
of Defense.
1. SCOPE
1.1 Scope. This specification covers all types of two-wire electrically heated pitot tubes
for use with airspeed indicators.
1.2 Classification. The pitot tubes are of the following styles and rated voltages (see 6.2):
1.2.1 Style. The styles of pitot tubes are as follows:
AN5811
-
"L" shaped, inverted
AN5812
-
"L" shaped
SAE AS5813
-
Straight
1.2.2 Rated voltage. The rated voltage of the pitot tubes are as follows:
Type 1 -
24-volt, direct current
Type 2 -
115-volt, 400-Hz, single phase, alternating current
Comments, suggestions, or questions on this document should be addressed to Defense Logistics
Agency Aviation VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616 or e-mailed
to STDZNMGT@dla.mil. Since contact information can change, you may want to verify the
currency of this address information using the ASSIST database at https://assist.daps.dla.mil.
AMSC N/A
FSC 6610
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