MIL-DTL-6458 Chain Assemblies, Single Leg, Aircraft Cargo Tie DownThis specification covers two types of flight safety critical aircraft cargo tie down chain assemblies. The chains described in this specification are to be used in conjunction with the tie down tensioners described in MIL-DTL-25959, where the Type I chain assembly is to be used with the Type I \(styles A and B\) and Type III tie down tensioners, and the Type II chain assembly is to be used with the Type II \(styles A and B\) and Type IV tie down tensioners.

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MIL-DTL-6458G

AMERICAN WELDING SOCIETY

AWS B1.11

- Guide for the Visual Examination of Welds.

(Copies of these standards may be found online at https://www.aws.org/ or from American

Welding Society, 550 N.W. LeJeune Road, P.O. Box 351040, Miami FL 33135.)

SOCIETY OF AUTOMOTIVE ENGINEERS, INC.

SAE-AMS-H-6875 - Heat Treatment of Steel Raw Materials.

(Copies of these standards may be found online at: https://www.sae.org/ or from Society

of Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 15096-0001.)

AMERICAN NATIONAL STANDARDS INSTITUTE

ANSI / ASQ Z1.4 - Sampling Procedures and Tables for Inspection by Attributes

(Copies of these standards may be found online at www.ansi.org or from American

National Standards Institutes, 25 West 43rd Street, New York, NY 10036.)

2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of

conflict between the text of this document and the references cited herein, the text of this document

takes precedence. Nothing in this document, however, supersedes applicable laws and regulations

unless a specific exemption has been obtained.

3. REQUIREMENTS

3.1 First article. When specified (see 6.2), a sample shall be subjected to first article

inspection in accordance with 4.3.

3.2 Materials.

3.2.1 Metals. Metals shall be suitably treated to resist corrosion due to fuels, salt fog

(spray), or atmospheric conditions likely to be met in storage or normal service. The chain

assembly shall be made of alloy steel conforming to ASTM A 304, ASTM A 322, ASTM A 108 or

equivalent, and heat treated to produce a chain of high tensile strength with resistance to impact

loads.

3.2.2 Heat treatment. Heat treatment of steel parts shall be in accordance with

SAE-AMS-H-6875.

3.2.3 Dissimilar metals. Unless suitably protected against electrolytic corrosion,

dissimilar metals shall not be used in intimate contact with each other. Dissimilar metals are

defined in MIL-STD-889.