MIL-DTL-83454A
SAE INTERNATIONAL - Continued
SAE AMS 6484
- Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni -
0.25Mo (0.38 - 0.43C) (SAE 4340) Normalized and
Tempered
SAE AS8879
- Screw Threads - UNJ Profile, Inch Controlled
Radius Root with Increased Minor Diameter
(Copies of these documents are available online at https://www.sae.org or from SAE
International, 400 Commonwealth Drive, Warrendale, PA 15096-0001.)
2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event
of a 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), samples shall be subjected to first article
inspection in accordance with 4.3.
3.2 Materials. Materials shall be as specified herein. However, when a definite material
is not specified, a material shall be used that will enable the terminals to meet the performance
requirements of this specification. Acceptance or approval of any constituent material shall not
be construed as a guaranty of the acceptance of the finished product. Materials used in the
construction of stud terminals will be fungus inert as described in guideline 4 of
MIL-HDBK-454.
3.2.1 Sleeve material and finish. The sleeve material shall consist of aluminum alloy
6061, temper T6, in accordance with SAE AMS-QQ-A-225/8. The sleeve finish shall conform
to type II, class 3 chromate conversion coating in accordance with MIL-DTL-5541.
3.2.2 Stud material and finish. The stud material shall consist of one of the following
steel alloys as designated (see 1.2.1.1):
A 4140 chrome-molybdenum steel in accordance with SAE AMS 6349
B 8740 chrome-nickel-molybdenum steel in accordance with SAE AMS 6322
C 4340 chrome-nickel-molybdenum steel in accordance with SAE AMS 6484
3.2.2.1 Heat treatment. Steel used in the production of the stud terminals shall be heat
treated to a tensile strength of 160-180 kilo-pounds-force per square inch (ksi) (Rockwell "C"
36 to 40).
3.2.2.2 Stud finish. Studs shall be cadmium plated in accordance with
SAE AMS-QQ-P-416, type II, class 2.
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