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MIL-C-7438G 19 June 1985 SUPERSEDING MI L-C-7438F 13 March 1972

MILITARY SPECIFICATION CORE MATERIAL , ALUMINUM, FOR SANDWICH CONSTRUCTION This specification is approved for use by all Departments and Agencies of the Department of Defense. 1.
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SCOPE covers treated aluminum core material for

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1.1 ~. This specification structural sandwich construction.

q I.2 Classification.Aluminum core material for sandwich construction shal 1 be furnished in the fo( lowing grades, as specified (see 6.2.1 and 6.4):

Grade

Description For exposure up to 350” F (see 3.2.1.1). For exposure up to 430” F (see 3.2.1.2).

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APPLICABLE DOCUMENTS Government documents

q 2.1.1 Specifications and standards~. Unless otherwise specified, the followincj specifications andstandards of the issue listed in that issue of the t)epa~tment of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein.

SPECIFICATIONS FEOERAL QQ-A-25014 QQ-A-25015 UU-P-268 Aluminum Al Ioy 2024, Plate and Sheet. Aluminum Alloy Alclad 2024, Plate and Sheet. Paper, Kraft, MraPPin9.

Beneficial comments(recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Systems Engineering and Standardization Department (Code 93) , Naval Air Engineering Center, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Oocument Improvement Proposal (00 Form 1426) appearing at the end of this document or by netter. FSC5680 is unlimited.

DISTRIBUTION

STATEMENT A, Approved for public release; distribution
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MIL-C-7438G SPECIFICATIONS FEDERAL (continued) PPP-B-576 PPP-B-585 PPP-B-591 PPP-B-636 PPP-B-640 MILITARY MIL-P-116 MIL-C=5541 MI L-H-6088 MI L-A-81596 STANDAROSFEDERAL FED-STD-595 MILITARY MI L-STD-105 MI L-STD-l 29 MI L-STD-401 Sampilng Procedures and Tables for Inspection by Attributes. Marking for Shipment and Storage. Sandwich Construction and Core Materials, General Test Methods. Colors. Preservation, Methods of. Chemical Conversion Coatings on Aluminum Al loys Heat Treatment of Aluminum Al 10YS. Aluminum Foi 1 for Sandwich Construction. Box, Hood,Cleated, Veneer, Paper Overlaid. Boxes, Wood, Hire bound. Boxes, Shipping, Fiberboard, Wood-Cleated. Boxes”, Shipping, Fiberboard. Box, Fiberboard, Corrugated, Triple-Wal 1.

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(Copies of specifications, standards, handbooks, drawings, and publications required by contractors in connection with specific acquisition functions should be obtained from the acquisition activity or as directed bythe contracting of ficer. ) 2,2 Other publications. The fol lowing documents form a part of this specification to the extent specified herein. The issues of the documents which are indicated as DoO adopted shall be the issue listed in the current DoOISS and supplement thereto, if appi icable.
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I AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM B 117 ASTM C 366 ASTM D 3951 (ASTM)

Salt Spray(Fog) Testing. Measurement of Thickness of Sandwich Cores Commercial Packaging, Practice for.

(Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103. ) (Industry association specifications and standards are generally avai Iable for reference from 1ibraries, They are also distributed among technical groups and usingFederal agencies. ) 2
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2.3 Order or precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification shal 1 take precedence. 3. REQUIREMENTS

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