MIL-PRF-49176B(CR)
Attributes
(Application for copies should be addressed to the American Society for Quality Control,
P.O. Box 3005, 611 East Wisconsin Avenue, Milwaukee, Wisconsin 53202.)
2.4 Order of precedence. In the event of a conflict between the text of this document and the
references cited herein, the text of this document takes precedence. Nothing in this document,
however, supersedes applicable laws and regulations unless a specific exemption has been
obtained.
3. REQUIREMENTS
3.1 First article. When specified (see 6.2.b), a sample(s) shall be subjected to first article
inspection in accordance with paragraph 4.2.
3.2 Materials. The contractor shall select materials which shall be fully capable of meeting
all the operational and environmental requirements specified herein. The materials specified in the
applicable drawings are recommended, but are not mandatory. Selection criteria of the class, grade
or type part shall be that the material will be able to perform its intended function when it is
assembled. Verification of the supplier meeting the overall performance requirements shall be the
governing acceptance standard. Recovered materials shall be used to the maximum extent
possible.
3.3 Description. The regulator provides low-noise regulated voltage used for biasing an
array of detectors. The regulator is normally interconnected with an infrared system.
3.4 Design. The regulator shall meet the form, fit, function and interface requirements as
specified herein.
3.4.1 Weight. The weight of the regulator shall be 0.16 (+0.02 -0.03) pound as weighed by a
scale having an accuracy of 1% or better.
3.4.2 Dimensions The regulator printed wiring board shall be of appropriate material not
thicker than 0.059 inches and shall have dimensions of 1.90 inches x 5.55 inches, + 0.02 inches.
When mounted, components shall not extend more than a maximum of 0.454 inches from the
surface of the printed wiring board. When oriented horizontally, the two top corners of the board
shall be rounded at 0.25 inches radius. The two bottom corners of the board shall be trimmed at a
45o angle between two points 0.25 inches vertical and horizontal of the corners, removing a triangle
of board material 0.25 by 0.25 on either side of the right angle (corner). The x-axis datum line
shall be located parallel to the lower edge of the board and 0.250 inches above that edge. It shall
pass through the two 0.062 inch diameter holes located 0.250 in from the trimmed corners. The y-
axis datum line shall pass through the left-hand 0.062 inch diameter hole and perpendicular to the
x-axis datum line. Two mounting holes 0.140 inches in diameter shall be located 1.450 inches
above the x-axis datum line and 0.050 inches to the left of the y-axis datum line and 5.100 inches
to the right of the y-axis datum line. Two connectors shall be attached to the component side of the
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