MIL-S-45527A(WC)
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4.5.4.1 Acquisition, calibraton, maintenance and disposition.
Unless otherwise specified (see 6.2), responsibility for acquisition,
calibration, maintenance and disposition of acceptance inspection and
test equipment shall be in accordance with MIL-I-45607.
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4.5.4.2 Accuracy of standard measuring equipment. When commercial
and modified commercial inspection and test equipment is used, it must
be capable of repetitive measurements to an accuracy of 10 percent of
the total tolerance of the characteristic being inspected.
4.6 Test methods.
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4.6.1 Performance test. Springs shall be tested using a Government
approved testing machine. The springs shall be compressed to the maximum
test height and the load shall be measured and recorded. The springs
shall then be compressed to the minimum test height and the load shall
be measured and recorded. All of the above measurements shall be made
during the compression stroke. Precautions shall be taken to assure that
there Is no fictional bind during the compression stroke. Unless other-
wise specified on the applicable drawing, the springs shall be compressed
a minimum of five times from the free height to the solid height before
performing the performance test.
PREPARATION FOR DELIVERY
5.
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5.1 Pilot Pack. The
pilot pack shall consist of a spring or springs
as required by and packaged
in accordance with the applicable packaging
data sheet for the level of
protection specified in the contract (see 6.2
and 6.3) packed level C and
forwarded in accordance with 3.1.
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5.2 Preservation, packaging, packing and marking. Springs shall be
preserved, packaged, packed and marked in accordance with the applicable
packaging data sheet for the level of protection specified in the contract
(see 6.2 and 6.3).
6. NOTES
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6.1. Intended use. This specification is intended to covert but not
be limited to, procurement of the following springs:
Nomenclature
Drawing
C7191544
Spring,
Driving (For M37 Machine Gun).
Firing Pin (For M60 Machine Gun).
Spring,
B7269087
Spring,
Driving (For M60 Machine Gun).
B7269303
Spring,
Helical Compression (For M85 Machine Gun).
B7791254
Spring,
Helical (For M219 Machine Gun).
C8448799
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