MIL-DTL-13735G
(Non-Government standards and other publications are normally available from the organizations which prepare or
which distribute the documents. These documents also may be available in or through libraries or other informational
services.)
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 Qualification. Switches furnished under this specification shall be products which are authorized by the
qualifying activity for listing on the applicable qualified products list (QPL) at the time of award of contract (see 4.3 and
6.3).
3.2 Materials. Materials shall be as specified herein and in referenced specifications and standards (see 4.8.1).
3.2.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally
preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the
operational and maintenance requirements, and promotes economically advantageous life cycle costs.
3.2.3 Metal parts. Metal parts shall be of a corrosion resistant material or shall be protected from corrosion in
accordance with the manufacturer's standard practice or in accordance with the applicable MS standard or drawing
(see 4.8.1).
3.2.4 Pure tin. The use of pure tin, as an underplate or final finish, is prohibited both internally and externally. Tin
content of components and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a minimum of 3
percent lead (see 6.4.3).
3.3 Design and construction. Switch dimensions and construction shall be in accordance with MS39061, or as
3.3.2 Threaded parts. Screw threads of the form, number per inch, and class specified on the applicable drawing
3.3.3 Lever positions. Lever positions and locations of momentary and maintained contact positions shall be in
accordance with the applicable MS standard or drawing (see 4.8.1 and 4.8.2).
3.3.4 Electrical connections. Electrical connections or terminals shall be in accordance with MS33800 or
applicable drawing for each lever position (see 4.8.1 and 4.8.2).
3.4 Performance.
3.4.1 Electrical.
3.4.1.1 Contact voltage drop. The voltage drop across all pairs of closed electrical contacts shall be not more than
50 millivolts (mV) when the switch is carrying the rated resistive load current specified on the applicable MS or
drawing (see 4.8.3).
3.4.1.2 Overload. The switch shall carry a current equal to 150 percent of the rated resistive load current specified
on the applicable MS or drawing without damage (see 4.8.4).
3.4.1.3 High voltage. The switch shall evidence no sparking, arcing, burning, smoking, charring, cracking,
loosening, rupturing or damage after or while, 440 V root mean square (rms) at 60 hertz (Hz) is applied for 1 minute to
all pairs of open electrical contacts (see 4.8.5).
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