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Protrators, Fan..Range Deflection: Aluminum Graduated in Mils and Meters
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Protrators, Fan..Range Deflection: Aluminum Graduated in Mils and Meters
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Preproduction inspection



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MIL-P-14462A
(Application for copies should be addressed to the
tractor of his obligation to supply protrac-
Official Classification Committee, 1 Park Avenue at
-
tors conforming to this specification. Any
33rd Street, New York 16, N. Y.)
changes or deviations of protractors from
A  MERICAN T  RUCKING ASSOCIATION
the preproduction model shall be subject to
National Motor Freight Classification
the approval of the contracting officer.
Rules.
3.4 Material. Material shall be as specified
(Application for copies should be addressed to the
American Trucking Association, 1424 16th Street
herein and as shown on the applicable draw-
NW, Washington, D. C.)
ing.
3. REQUIREMENTS
3.4.1 Aluminum alloy sheets. Aluminum
alloy sheets shall conform to Specification
3.1 Fabrication. The range deflection pro-
QQ-A+327, temper T651.
tractors shall be fabricated as detailed in the
following drawing part numbers and as
3.5 Markings. The graduations, numerals,
specified herein.
and other markings shall be etched or scribed
on the surface of the protractor and then
Protractor
Drawing part number
Class 1
D 8483-1-1
shall be filled with a permanent black me-
Class 2
D 8483-1-2
dium.
Class 3
D 8483-1-3
D 8483-1-4
Class 4
3.6 Straightness. The ruling edge of pro-
32 The drawing forming a part of this
tractor shall be straight and shall ensure that
specification is an engineering design draw-
deflection angles measured from any point
ing and is not intended for use as a shop
along the ruling edge are accurate to within
drawing. Critical dimensions and tolerances
plus or minus 0.5 roil.
are furnished; however, the contractor is
3.7 Finishing. The protractors shall be
responsible for preparing his own show
anodized before the addition of permanent
drawings. Where tolerances are not shown
black medium to the markings in accordance
or where those prescribed could cumulatively
with Specification MIL-A-8625, type IX, non-
result in improper fits, the contractor is
dyed. The protractors shall have a smooth,
responsible for providing tolerances in ac-
natural-aluminum, satin finish.
cordance with industry standards for similar
3.8 Identification marking. Each protrac-
equipment and within those prescribed on the
tor shall be identified in accordance with
engineering design drawing to insure proper
Standard MIL-STD-130 and as shown on the
fit, assembly, and operation of the protrac-
drawing.
tors. No deviation from dimensions or tol-
erances shown on the engineering design
3.9 Workmanship. The protractors shall be
drawing is permissible without prior ap-
free from visible scratches, dents, flaws, or
proval of the contracting officer.
other imperfections. The edges shall have a
smoothness equivalent to that obtained by
3.3 Preproduction model. The preproduc-
milling and subsequent polishing. Punched or
tion model is defined as a production model
sheared edges are not acceptable.
which will be identical to the protractors
which the manufacturer will subsequently
4. QUALITY ASSURANCE PROVISIONS
produce in fulfillment of the contract. As
4.1 The supplier is responsible for the per-
soon as practicable after award of the con-
formance of all inspection requirements as
tract or order and prior to submission of any
specified herein. Except as otherwise spec-
protractors for final acceptance, the contrac-
ified, the supplier may utilize his own or any
tor shall furnish a preproduction model for
other inspection facilities and services ac-
examination and test to determine conform-
ceptable t-o the Government. Inspection
ance to this specification. Examination and
records of the examination and tests shall be
tests shall be those specified herein. Ap-
kept complete and available to the Govern-
proval of the preproduction model by the
ment as specified in the contractor order.
activity concerned shall not relieve the cox~-
2

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