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A-A-580 Revision A, January 15, 1992
Complete Document
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Includes all amendments and changes through Cancellation Notice 1, August 12, 1999
Additional Comments: CNCL NO S/S
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The General Services Administration has authorized the use of this commercial item description, for the use of all federal agencies.

This description covers lead holders for drawing and drafting use.
    Type I   - with adjustable indicator for 17 lead hardness

    Type II  - with color coding (cap, ring, or other method)
               for lead identification.

    Type III - without lead hardness indicator.