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Heat-sealed seam and quick leak. |
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|  MIL-S-45921A(AR)
4.5.3.3.4.2 Heat-sealed seam and quick leak. The
contractor shall test the heat-sealed bag in level A unit packages
from each inspection lot for heat-seal and quick leak using the
test methods specified in 4.6.10.2.
Sampling shall be in
accordance with MIL-P-116.
4.5.3.3.5 Barcol harness. Five (5) stock shall halves each
(left side and riqht side) shall be selected at random from each
Two (2) readings
day's production of each molding press used.
each shall be taken at the receiver, butt and forearm area of the
external surface of the stock shall half.
These measurements
shall be taken within twenty-four (24) hours after the shells are
removed form the molds. The six readings shall be averaged and
the average reading shall be Barcol 50 minimum.
4.5.4 Inspection equipment. Unless otherwise specified in
the procurement documents (see 6.1), responsibilities for
acquisition, maintenance, and disposition of measuring and
testing equipment prescribed on List of Inspection Equipment,
Drawing IEL11686427, and for all other inspection equipment
required to perform inspection required by applicable
specifications, shall be in accordance with MIL-I-45607.
4.6 Methods of inspection. When the stock assembly is
tested as a component part of the M14 rifle, a butt plate assembly
with shoulder rest (Drawing D 7790686) and a butt swivel shall be
assembled to the stock so that the test is performed using a
complete rifle (see 4.6.3 through 4.6.9).
The stock assembly shall be
4.6.1 Adhesive and foam test.
tested for the adhesive and foam requirements (see 3.2.3.5 and
3.2.3.6) by cutting the stock assembly along the planes indicated
in Figure 1. Any suitable means may be used to cut the stock
assembly.
The specimens suitable means may be used to cut the
stock assembly. The specimens shall be visually examined to
determine of the retirements have been met. At the discretion of
the Government representative additional cuts may be made to
determine the extent of a questionable defect.
4.6.2 Twist test.
Stock assemblies shall be tested for the
twist requirement (see 3.2.4) using a test fixture conforming to
Drawing D11015482. A torque of 40 pound-feet shall be applied
once in the clockwise direction and once in the counterclockwise
direction. After application of the torque, the stock assembly
shall be visually examined to determine compliance with the
requirement.
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