A-A-52163 Ladders, Vehicle-BoardingThis CID covers nine different types of portable, metal, step-ladders hereinafter referred to as ladders for use by personnel in boarding vehicles.

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A-A-52163B

6.3  Cross-reference data.  Ladders conforming to this CID are interchangeable/substitutable with ladders conforming to A-A-52163.  Applicable Army drawing numbers cross-referenced to applicable CID PINs are listed as follows:

6.4  Part or identification number (PIN).  The PIN to be used for ladders acquired to this CID are created as follows:

AA    XXXXX  -  XX

Dash number (see Figures 1 through 9) CID number

CID designator

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