MIL-DTL-28839B
(Copies of these documents are available online at https://assist.dla.mil or from the Standardization Document
Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)
2.3 Non-Government publications. The following documents form a part of this document to the extent specified
herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) INTERNATIONAL
-
Aluminum and Aluminum-Alloy, Seamless Pipe and Seamless Extruded Tube .
-
Copper Sheet, Strip, Plate, and Rolled Bar.
(Copies are available online at https://www.astm.org or at ASTM International, P.O. Box C700, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959)
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 (except for related specification sheets), 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 Specification sheets. The individual item requirements shall be as specified herein and in accordance with the
applicable specification sheet. In the event of any conflict between the requirements of this specification and the
specification sheet, the latter shall govern.
3.2 First article. When specified (see 6.2), the contractor shall furnish a sample unit for first article inspection and
3.3 Materials. The material shall be as specified (see 3.1). Acceptance or approval of any constituent material
shall not be construed as a guaranty of the finished product.
3.3.1 Aluminum alloy. Aluminum alloys 1060, 1100, 6061, and 6063 shall conform to the chemical composition
limits of ASTM-B241/B241M. The minimum resistivity shall be as follows:
a. 1060, 28 micro ohms/centimeter.
b. 1100, 2.90 micro ohms/centimeter.
c. 6061, 4.0 micro ohms/centimeter.
d. 6063, 3.4 micro ohms/centimeter.
3.3.2 Copper. Copper type OF shall conform to ASTM-B152/B152M.
3.3.3 Jacket. Waveguide jacket material shall meet or exceed all requirements of this specification (see 6.6).
3.3.4 Pure tin. The use of pure tin as an underplate or final finish is prohibited both internally and externally. Tin
content of the waveguide components and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a
minimum of 3 percent lead, by mass (see 6.7).
3.4 Design and construction. Waveguides shall be of the design, construction, and physical dimensions specified
(see 3.1).
3.4.1 Finish. The interior and exterior (except for jacketed waveguides) surfaces of the waveguide shall be bright,
smooth, dry, and free of scales or oxide. All aluminum alloy waveguides shall be chemically treated in accordance
with MIL-DTL-5541.
2
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business