MIL-P-45651B(MU)
knob lock shall not exceed 5 pounds at a
4. QUALITY ASSURANCE PROVISIONS
standard ambient temperature of 60° to 90°
4.1 Responsibility for inspection. Unless
F. and the temperatures specified in 3.4.2.
otherwise specified in the contract or pur-
The slip scales shall be movable at the above
chase order, the supplier is responsible for
temperatures.
the performance of all inspection require-
3.9.7 Boresight knob torque. The running
ments as specified herein. Except as other-
wise specified, the supplier may utilize his
torque required to rotate each boresight
knob, when unlocked, shall not exceed 5
own or any other inspection facilities and
pound inches at a standard ambient tempera-
services acceptable to the Government. In-
ture of 60° to 90° F., and the torque shall
spection records of the examinations and
not change from the value obtained by more
tests shall be kept complete and available
than 2 pound inches when subjected to the
to the Government as specified in the con-
temperatures specified in 3.4.2.
tract or order. The Government reserves the
right to perform any of the inspections set
3.9.8 Reticle illumination. With a -24-volt
forth in the specification where such inspec-
current source actuating the reticle light,
tions are deemed necessary to assure
the reticle marking shall appear clearly
supplies and services conform to prescribed
defined when observed in a dark room.
requirements.
3.9.9 Image tilt. With the mounting sur-
4.1.1 General provisions. The quality as-
face vertical and reference line Y hori-
surance provisions of this specification and
zontal, the image of a plumb line shall be
of other documents referenced herein form
vertical within one degree.
the basis for inspection to be performed by
3.9.10 Parallelism of image and reticle.
the supplier. Inspection shall be in accord-
With the mounting surface vertical and ref-
ance with the requirements of Specification
erence line Y horizontal, the image of a
MIL-I-45208 and the component inspection
horizontal line shall be parallel to the hori-
requirements of Specification MIL-F-13926.
zontal reticle line within 15 minutes of arc.
Definitions of inspection terms not other-
wise defined herein shall be listed in Stand-
3.9.11 Resolution. The resolving power on
ard MIL-STD-109.
the optical axis shall be 6 seconds of arc or
less.
4.2 Inspection provisions.
3.9.12 Eyepiece focus. The diopter scale
4.2.1 Inspection lot. Unless otherwise
shall indicate zero within 1/4 diopter when
specified by the contracting officer, inspec-
the reticle is brought into sharp focus.
tion lot size, formation, and presentation of
3.9.12.1 Diopter movement. The eyepiece
lots shall be in accordance with "Submission
shall be capable of movement throughout
of Product" as specified in Standard MIL-
a range of +4 and -4 diopters.
STD-105.
3.9.12.2 Backlash. Backlash in the diopter
4.2.2 Examination and tests. Components
movement shall not exceed l/8 diopter.
and subassemblies shall be inspected in ac-
cordance with the inspection provisions
3.9.12.3 Diopter knob torque. The running
contained in Specification MIL-F-13926, and
torque required to rotate the diopter adjust-
ment shall not exceed 7 pound inches at a
Supplementary Quality Assurance Pro-
visions LSQAP 8289172 for Periscope: M31,
standard ambient temperature of 600 to 90°
F. The torque shall not change from the
and LSQAP 10516388 for Periscope: M31C,
value obtained at standard ambient tempera-
as applicable. Examinations and tests re-
ture by more than 3-pound inches when
lated to section 3 herein shall be performed
subjected to the temperatures specified in
on a defect (individual characteristic) basis
3.4.2.
in accordance with Standard MIL-STD-105
4
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