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|  MIL-L-45589
3.9.10 Firing pin indent. The firing pin indent shall be 0.008
to 0.011 inches and shall not be off-center more than one-half the
diameter of the firing pinpoint when tested as specified in 4.4.3.2
and 4.5.1.
3.9.11 Firing pin intrusion. The firing pin intrusion shall be
0.000 to 0.009 inches when tested as specified ln 4.4.3.2 and 4.5.2.
3.9.12 Trigger pull. The trigger pull shall be free of creep
and shall be greater than 6.5 pounds but shall not exceed l.1 pounds when
tested as specified in 4.4.3.1 and 4.5.3. Creep shall be interpreted
to mean any perceptible rough movement between the time the trigger slack
is taken up and the hammer is released.
3.9.13 Interchangeability. Unless otherwise indicated on the
drawings, parts shall be interchangeable. (In normal assembly operations,
there shall be no objections to preferential assembly of parts provided
that all parts are dimensionally acceptable.) Launchers and repair
parts shall be capable of meeting the interchangeability tests specified
in 4.4.3.3 and 4.5.4.
3.9.14 Pressure resistance. Launchers shall be capable of with-
standing the pressure resistance test (proof firing) specified in
4.4.3.1, 4.5.5 and 4.5.5.1. Parts shall be free of cracks, seams, and
other defects after proof firing as evidenced by visual examination.
3.9.15 Functioning. Launchers shall operate without malfunctions
and unserviceable parts when tested as specified in 4.4.3.1, 4.5.5 and
4.5.5.2.
3.9.16 Alinement of sights.
3.9.16.1 The sight scale shall-be capable of being adjusted so
that the angle between the line of sight established by the 200 meter
scale mark and a horizontal plane containing the center line of the barrel
bore is 208 roils. With the sights set for the 200 meter range, the
windage scale set at zero, and the center line of the barrel bore per-
pendicular to a target, the front sight shall be adjusted so that the
intersections with the target of the projected center line of the barrel
bore and the line of sight established by the 200 meter scale mark are
horizontally displaced on the target by .44 inches per 100 inches of
target distance, and locked. Target distance is defined as the distance
from the forward tip of the front sight to the target, when measured par-
allel to the bore center line.
3.9.16.2 With the sight components adjusted as specified in
3.9.16.1, the angle between the line of sight established by the 75
meter scale mark and a horizontal plane containing the bore center line
shall be 69 mils 3 mils. The angle between the line of sight established
by the 350 meter scale mark and a horizontal plane containing the bore
center line shall be 476 mils 9 mils.
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