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Test Methods and Procedures.
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Warhead, 2.75 Inch Rocket, Flechette, With Fuze WDU-4 A/A, WDU-13/A Loading, Assembly and Packing
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Inspection Equipment List Codes



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MIL-W-50550A (MU)
than 4 hours and then reconditioned to the applicable temperature.
Utilizing a customer-approved centrifuge device, warheads shall be
subjected to an axial acceleration force of 11+2 gravities (g's)
for a period of at least 3 seconds.  Centrifuge power shall then br
turned off and the centrifuge arm shall be slowed to slow down at
a natural rate to a full stop.  If the round does not function, it
shall be considered acceptable and the round again subjected to an
axial acceleration force of 31 2G's for a period Of at least 1.5
Centrifuge shall then be turned off, and the centrifuge
seconds.
arm shall be allowed to slow down at a natural rate.  Warheads shall
fire when acceleration decreased to 15G's or less.  Warhead firing
(flechette expulsion) shall verify the firing requirements estab-
lished in paragraph 3.4 of this specification.
4.4.2  Leak Test (see 4.3.4.2 ).-The warheads selected for
this test shall be subjected to a leak test.  The loaded warhead,
when subjected to a pressure differential of ten PSI at room
temperature shall not leak at a rate exceeding 1 x 10-4 cc/see
for 10 seconds minimum after stabilization.
PREPARATION FOR DELIVERY
5.
Packaging
5.1
5.1.1 Level C .-(For shipment to load plants for further
processing).
(see dwg. 9242056).
5 .1.2  Level A. -The warheads, with Fuzes, shall be packaged
In accordance with dwg. 66C10121.
(If shipped to other than load
plants).
5.2.2  Level A.-The packaged assemblies shall be packed and
(If shopped to other than
marked In accordance with dwg. 66B1O122.
load plants).
6,
NOTES
6.1 Ordering Data.- Procurement documents shall specify the
following:
a.  Title, number and date of this specification.
b.  Data cards.- Data cards shall be prepared for each lot
in accordance with the information specified in Standard MIL-STD-1167.
c.  Provisions for submission of first article sample.
10

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