3.4.7 High temperature functioning
for this test shall be conditioned at 155F + 5F and shall be
capable of withstanding the firing of 1200 rounds each with no less
than 125 Mean Rounds Between Stoppages (MRBS) and no less than 1200
Mean Rounds Between Failure. A weapon that continues to fire after
the trigger is released shall be considered to have failed the test.
M196 5.56 Tracer ammunition shall be used.
3.4.8 Low temperature functioning. Submachineguns submitted
for this test shall be conditioned at -500F - 50F and shall be
capable of withstanding the firing of 3000 rounds each with no less
than 1500 Mean Rounds Between Stoppages (MRBS) and no less than 3000
Mean Rounds Between Failure (MRBF). A weapon that continues to fire
after the trigger is released shall be considered to have failed the
test. M196 5.56 Tracer ammunition shall be used.
3.4.9 Comparison test. Comparison tests shall be performed by
the Government as specified in the contract as to number of
submachineguns tested and frequency of the tests. Selection of
submachineguns for test shall be made by government representative.
Testing shall be as specified in paragraph 4.8.2 and shall be for
comparison with earlier production. The High and Low Temperature
Functioning Tests shall be for information only. Testing shall be
at a facility specified by the Contracting Officer.
3.5 Interchangeability Unless otherwise specified on the
3.5 drawings, all parts shall be interchangeable.Testing shall be as
specified in 22.214.171.124, Table IV.
3.6 Marking. Each submachinegun shall be clearly marked in
accordance with the applicable drawings and MIL-W-13855.
3.7 First article inspection. This specification contains
technical provisions for first article inspection. Requirements for
the submission of first article samples by the contractor shall be
as specified in the contract. Unless otherwise specified the first
article shall include the pilot pack.
Workmanship shall be in accordance with
workmanship requirements of MIL-W-13855.