A-A-52036 Level, Surveying, Self-Leveling, And TiltingThis commercial item description covers levels instruments used for taking differential elevation measurements, in surveying and other engineering applications. The complete instrument shall consist of an internal focusing telescope capable of 360 degree rotation, image lens system, cross hairs horizontal and vertical, leveling system, tripod, and accessories.

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A-A-52036B

7.3  Part identification number (PIN).  The following part identification numbering procedure is for government purposes and does not constitute a requirement for the contractor.

This example describes a part numbering system for CID A-A-52036B AA52036XYZ

Class:  Class 1 = First order; error not greater than 1.54 seconds

Class 2 = Second order; error not greater than 3.07 seconds

Type I = Tilting level

Style A = With plane parallel optical micrometer

Style B = Without plane parallel optical micrometer

Type II = Self leveling level

Style A = With horizontal circle

Style B = Without horizontal circle

Document identifier

Example:  AA52036IIB1-A self-leveling instrument, without a horizontal circle, capable of first order accuracy.

7.4  Sources of documents.

7.4.1  Copies of the Federal Acquisition Regulation (FAR) may be obtained from: Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.

7.4.2  Copies of ASME B1.1 may be obtained from: American Society of Mechanical Engineers, United Engineering Center, 345 E. 47th St., New York, NY 10017.

7.5  National Stock Numbers (NSN's).  NSN 6675-01-076-5465 has been used to procure Type

2A2 and 6675-01-054-5012 has been used to procure Type 2B2.

7.6  Subject term (key word) listing.

Alidade Collimation Measurement Optics

Transit Tribrach Tripod

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