MIL-DTL-14631 Plate, Automobile, Individual; General Specification For

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11

MIL-DTL-14631C

3.5.5 Hard Solder. Hard solder shall be a silver alloy solder

having a melting point of not less than 1075 degrees F (580 c).

3.5.6 Rhodium for Plating. Rhodium for plating shall be the rhodium

normally used in commercial practice.

3.5.7 Nickel for Plating. Nickel for plating shall be the nickel

normally used in commercial practice.

3.5.8

Lacquer.

Lacquer shall be composed of 100 % acrylic resins.

3.6

Design.

3.6.1 Embossed star. The design of the embossed stars on the

General Officers plates shall be an exact replica of the design of a

Government furnished hub (3.9) from which the contractor's working dies

shall be extracted. The contractor's working die shall be tooled and

polished to remove any dents, nicks, scratches or other imperfections.

3.6.2 Screen printed plates. The design of the screen printed

plates shall be photographic duplicates of the design on Government

furnished drawings.

3.7 Construction. Plates shall be constructed in accordance with

the requirements of the applicable specification sheet and the

requirements specified herein.

3.7.1 Stamping and trimming. The stars shall be struck in such a

manner to insure a well defined die struck edge. All edges of the stars

and plates (including the holes) shall be trimmed so as to be clean,

smooth and free from burrs, drags, step and rough edges. The stamping and

trimming operation shall not damage or distort the design or alter the

shape of the them.

3.7.2 Soldering. Soldering shall be accomplished using hard solder

specified in 3.5.5. All flux and excess solder shall be removed. Joints

shall be clean, smooth, strong and free from burned or reduced areas.

When tested as specified in 4.6.1, the soldered joint shall not separate.

3.7.3. Plates. Plates shall be fabricated from aluminum specified

in 3.5.1 and shall have a thickness of .064 inch + .003 inch (0.162 cm +

0.007 cm). After fabrication, the surface of the plates shall be visibly

flat and free from surface recesses, protrusions or other imperfections

which might affect the smoothness, appearance or serviceability of the

enamel. All sharp edges of the plates shall be removed.

3.7.4 Embossed stars. Embossed stars shall be fabricated from brass

specified in 3.5.2 and a stud shall be attached to the back surface by

soldering. Care should be taken to insure that the stud is perpendicular

to the back surface. Registering pins may be an integral part of the star

or may be fabricated from brass and soldered to the back of the star in

the location shown on drawing 4-4-81 (Figure 1).

3.7.4.1 Studs. Studs shall be made from brass specified in 3.5.2

and shall have NO. 10-24-UNC-2A threads. The studs shall be rhodium

plated.

3.7.5 Retaining nut. The retaining nut shall be a 316L stainless

steel, standard commercial No. 10-24-UNC-2B threads, winged lock nut with