MIL-DTL-13623E
6.2 Ordering data. Procurement documents should specify the following:
a.
Title, number, and date of this specification.
Type and class of switch (see 1.2).
b.
c.
Applicable drawings if required (see 3.2).
d.
If color other than specified is required (see 3.5.1).
e.
Any special plating requirements (see 3.5.2).
f.
If inspection conditions are other than as specified (see 4.3).
g.
Selection of applicable level and packaging standard or packaging data sheet (see 5.1).
h.
6.3 Definition.
6.3.1 Voltage drop. When the switch is built with permanently attached flexible tails) and the switch
terminals have been sealed (as with a molded sealant or potting compound), it may be necessary to
measure total conductor terminal or conductors terminal drop and make necessary allowance for
6.4 Switch lever. A lever is not supplied as part of the switch. The lever required will be determined
by type of engine (gasoline or multifuel) on which the switch is used (see 3.2).
6.5 Tin whisker growth. The use of alloys with tin content greater than 97 percent, by mass, may
exhibit tin whisker growth problems after manufacture. Tin whiskers may occur anytime from a day to
years after manufacture and can develop under typical operating conditions, on products that use such
materials. Conformal coatings applied over top of a whisker-prone surface will not prevent the formation
of tin whiskers. Alloys of 3 percent lead, by mass, have shown to inhibit the growth of tin whiskers. For
additional information on this matter, refer to ASTM-B545 (Standard Specification for Electrodeposited
Coatings of Tin).
6.6 Environmentally preferable material. Environmentally preferable materials should be used to the
maximum extent possible to meet the requirements of this specification. As of the dating of this
document, the U.S. Environmental Protection Agency (EPA) is focusing efforts on reducing 31 priority
chemicals. The list of chemicals and additional information is available on their website at
https://www.epa.gov/osw/hazard/wastemin/priority.htm. Included in the EPA list of 31 priority chemicals
are cadmium, lead, and mercury. Use of these materials should be minimized or eliminated unless
needed to meet the requirements specified herein (see Section 3).
6.7 Subject term (key word) listing.
single-pole, single throw
single-pole, multi-throw
multipole, single throw
multipole, multi-throw
waterproof
non-waterproof
non-waterproof, with sealed (waterproof) shaft
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