[METRIC]
A-A-52169B February 9, 1995
SUPERSEDING A-A-52169A(AT) February 19, 1993 (see 5.4)
COMMERCIAL ITEM DESCRIPTION INSULATION; SOUND, VIBRATION, AND THERMAL
The General Services Administration has authorized the use of this commercial item description (CID) for all federal agencies.
1. SCOPE. This CID covers the physical, chemical, and performance characteristics of the composite material used to make insulating pads for use on the High Mobility Multipurpose Wheeled Vehicle (HMMWV) series of vehicles and for other similar applications. The insulating pads are used as a thermal, sound, and vibration barrier. The insulating pad is made of five layers of material consisting of the following components: a deep twist outer vinyl wear surface with a cloth reinforcement backing; a sound barrier layer; a closed cell acoustical and thermal foam insulation layer; a high temperature needle mat thermal blanket layer; and a fiberglass cloth reinforced vinyl and mylar backing (see figure 1).
FIGURE 1. Composite cross-section of insulation pad material. Beneficial comments, recommendations, additions, deletions clarifications, etc. and any
other data which may improve this document should be sent by letter to: U.S. Amy
Tank-automotive and Armaments Command, ATTN: AMSTA-TR-T, Warren, MI
48397-5000.
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DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
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A Service Disabled Veteran Owned Small Business