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|  MIL-G-45140B
4.5.3 Testing.
4.5.3.1 Failure data. Unless otherwise specified herein, all tests
shall be conducted on a complete gun. If test requirements cited herein
are not met, acceptance of the gun shall be deferred and the contractor
shall accomplish, as applicable, the following actions:
Conduct a failure analysis study performing a dimensional,
a.
physical and visual examination of the components which
are suspected to be the cause of failure or malfunction.
b. Evaluate and correct the applicable production processes
and procedures to prevent recurrence of the same defect(s)
in future production.
c. Examine guns, partially assembled guns, and components
(including components and subassemblies at in-process or
final assembly to insure that material containing the
same defect is purged from the inventory and not presented
to the Government for acceptance.
d. Submit the results of the failure analysis and the
corrective actions taken to the Government for review and
approval prior to submitting a reconditioned lot or recon-
ditioned gun for retest.
*
4.5.3.2 Text
4.5.3.2.1 Functioning , high-pressure resistance and targeting and
accuracy testing. Each gun shall be tested for functioning (see 3.3.1),
high-pressure resistance (see 3.3.2), and targeting and aCCuracy (see
3.3.3 using the test methods specified in 4.6.1, 4.6.2 and 4.6.3 respec-
tively. Failure of any gun to meet these requirements shall be cause
for rejection.
*
4.5.3.2.2 Operating rod protrusion, sear release disengagement
hammer release and spring return load, and firing pin indent testing.
A random sample of 10 guns from each inspection lot shall be tested for
operating rod protrusion (see 3.2.24), sear release disengagement (see
3.2.25), hammer release and spring return load (see 3.2.26), and firing
pin indent (see 3.2.27), using the test methods specified in 4.6.4,
4.6.5, 4.6.6 and 4.6.7 respectively. Failure of any gun in the sample
to meet these requirements shall be cause for rejection of the repre-
sented lot.
*
4.5.3.2.3 Endurance testing. One gun and five magazines shall be
randomly selected from each inspection lot and tested for endurance (see
3.3.4) using the test method specified in 4.6.8. Failure of the gun to
meet the requirements shall cause retest or rejection of the represented
lot. A retest of two other guns and ten other magazines randomly
selected from the same lot shall be made, unless the failure indicates
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