MIL-DTL-46789D(AT)
4.9.6 Vibration resistance. To determine conformance to 3.7.6, subject the assembly to
the vibration test specified in MIL-STD-810, Method 514.4, procedure VIII or equivalent
(see 4.3.1), except vibration level shall be as shown in figure 2. Sweep time shall be 16 minutes
per cycle and the total cycling time per axis shall be two hours in each of the three mutually
perpendicular axes. Resonance search shall be conducted at room temperature. After resonance
(if any) has been determined place the assembly in a 52 °C ambient environment and subject it to
vibration sweeps with resonance, dwell at points (if any) detected. At the conclusion of this test,
return the assembly to room temperature. Following this test the assembly shall be subjected to
and pass the electrical output test of 4.6.1.
4.9.7 High temperature. To determine conformance to 3.7.7, subject the assembly to the
high temperature test specified in MIL-STD-810, Method 501.3, Procedure II or equivalent
(see 4.3.1), except storage temperature of step 4 shall be 71 °C. At the conclusion of the storage
temperature test, stabilize the assembly at 52 °C and subject it to the electrical output test of
4.6.1. After testing, return the assembly to room ambient temperature. Following this test the
assembly shall be subjected to and pass the electrical output test of 4.6.1.
4.9.8 Low temperature. To determine conformance to 3.7.7, subject the assembly to the
low temperature test specified in MIL-STD-810, Method 502.3, Procedure I or equivalent
(see 4.3.1). Maintain the temperature at -54 °C for a period of 12 hours minimum. At the
conclusion of this time, stabilize the assembly at -32 °C and subject it to the electrical output test
of 4.6.1. After testing, return the assembly to room ambient temperature. Following this test the
assembly shall be subjected to and pass the electrical output test of 4.6.1.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as
specified in the contract or order (see 6.2). When packaging of materiel is to be performed by
DoD or in-house contractor personnel, these personnel need to contact the responsible packaging
activity to ascertain packaging requirements. Packaging requirements are maintained by the
Inventory Control Point s packaging activities within the Military Service or Defense Agency, or
within the military service s system commands. Packaging data retrieval is available from the
managing Military Department s or Defense Agency s automated packaging files, CD-ROM
products, or by contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is
not mandatory.)
6.1 Intended use. The assembly covered by this specification is for emergency use as an
alternate firing method in the event of power failure in the vehicle. It is a manually operated
device which produces an electrical output through generator action. These assemblies are
military unique because they are used for the manually emergency firing of military weapons and
14
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business