INCH-POUND
A-A-52421A(AT)
17 June 2010
SUPERSEDING
A-A-52421(AT)
11 January 1993
COMMERCIAL ITEM DESCRIPTION
ACCESSORY KIT; WARNING DEVICE, DEMOUNTABLE,
FOR EMERGENCY VEHICLES
The General Services Administration has authorized the use of this commercial item description
(CID) as a replacement for MIL-W-62151(AT) which is canceled.
1. ABSTRACT. This CID covers a 14 volt and 28 volt demountable warning device consisting
of a support bar and brackets for rain gutter mounting and gutterless mounting of two rotating
warning lights, speaker, electrical harness, electronic siren and public address (P/A) system with
microphone for use on security and other emergency vehicles having 12 or 24 volt electrical
systems. The accessory kit and its associated hardware is referred to herein as "warning kit".
1.1 Classification. The warning kits shall be of the following types and classes, as specified (see
2.2 and 6.2):
Type I
-
14 Volt DC
Type II
-
28 Volt DC
Class 1
-
Yellow/Amber dome
Class 2
-
Blue dome
Class 3
-
Red dome
2. SALIENT CHARACTERISTICS
2.1 Materials. Materials shall be of such quality as to be free from defects that might adversely
affect performance. Materials having a tendency to warp or to absorb moisture shall not be used.
The use of recovered materials made in compliance with regulatory requirements is acceptable
providing that all requirements of this CID are met (see 3).
Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that
may improve this document should be sent to DAMI_STANDARDIZATION@conus.army.mil or
U.S. Army RDECOM, Tank Automotive Research, Development and Engineering Center,
ATTN: RDTA-EN/STND/TRANS MS #268, 6501 E. 11 Mile Road, Warren, MI 48397-5000.
Since contact information can change, you may want to verify the currency of this address
information using the ASSIST Online database at https://assist.daps.dla.mil/online/.
AMSC N/A
FSC 6220
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