[METRIC]
A-A-52407A
July 29, 1998
SUPERSEDING
A-A-52407
September 15, 1992
COMMERCIAL ITEM DESCRIPTION
GLASS, FILTER, COLORED
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 properties of four related grades of colored filter glass
for use in optical systems. The colored filter glass is referred to herein as "glass".
2. CLASSIFICATION. Glass covered by this CID are classified as follows:
Grade A
-
Sharp cut red filter.
Grade B
-
Sharp cut red filter with lower cut frequency than grade A glass.
Grade C
-
Blue filter.
Grade D
-
Blue filter which passes smaller frequency range between 15% and 60%
transmittance in blue portion of spectrum than grade C glass.
3. SALIENT CHARACTERISTICS.
3.1 Design, materials, and manufacturing process. Design, materials, and manufacturing process
selection is the prerogative of the contractor as long as all articles submitted to the Government
fully meet the physical characteristics of this CID. Final shape of the glass shall be as specified in
the contract (see 7.3). Materials shall be of a quality necessary to produce fine annealed high-
quality glass which conform to the requirements for grade as detailed in this CID.
3.1.1 Control thickness. The glass shall meet the control thickness requirements specified in
table I. The molder/blank thickness shall be as required to achieve the control thickness and
salient characteristics of this CID.
Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any other
data which may improve this document should be sent by letter to: U.S. Army Tank-automotive
and Armaments Command, ATTN: AMSTA-TR-E/BLUE, Warren, MI 48397-5000
AMSC N/A
FSC 9340
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
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