MIL-DTL-13484G
6.7 Grades. Previous revisions of this specification carried classifications of grade A (waterproof)
and grade B (nonwaterproof). Since all switches are now waterproof, this classification was dropped.
6.8 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).
6.9 Subject term (key word) listing.
Contact voltage drop
Current rating
Endurance
Fungus
High temperature operation
Insulation resistance
Lead connections
Low temperature operation
Open circuit resistance
Overload capacity
Recovered material
Shock
Vibration
Waterproofness
6.9 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).
6.10 Changes from previous issue. The margins of this specification are marked with vertical lines to
indicate where modifications from this revision were made. This was done as a convenience only and the
Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and
contractors are cautioned to evaluate the requirements of this document based on the entire content
irrespective of the marginal notations.
Custodian:
Preparing activity:
Army - AT
DLA - CC
DLA - CC
(Project 5930-2011-001)
NOTE: The activities listed above were interested in this document as of the date of this document.
Since organizations and responsibilities can change, you should verify the currency of the information
above using the ASSIST Online database at https://assist.daps.dla.mil/ .
13
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business