MIL-F-26301G
DEPARTMENT OF DEFENSE STANDARDS
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Requirements for the Control of Electromagnetic Interference Characteristics of
Subsystems and Equipment.
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Aircraft Electric Power Characteristics.
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Environmental Engineering Considerations and Laboratory Tests.
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Marking of Electrical and Electronic Parts.
(Copies of these documents are available online at https://assist.daps.dla.mil/quicksearch/ or
https://assist.daps.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)
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Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel.
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Standard Specification for Gasolines, Aviation.
ASTM G 21
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Standard Practice for Determining Resistance of Synthetic Polymeric Materials to
Fungi.
(Application for copies should be addressed to ASTM International at https://www.astm.org or, PO Box C700, 100
Barr Harbor Drive, West Conshohocken, PA 19428-2959.)
2.4 Order of precedence. Unless otherwise notes 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 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), a sample shall be subjected to first article inspection (see 6.3) in
accordance with 4.2.
3.3 Materials. Materials shall be as specified herein. However, when a definite material is not specified, a material
shall be used which will enable the flashers to meet the performance requirements of this specification. Materials
used shall be self-extinguishing and shall not support combustion, emit noxious gases in harmful quantities, emit
gases in quantities sufficient to cause explosion of sealed enclosures, or form current-carrying tracks when subjected
to any of the tests specified herein. Unless otherwise specified (see 3.1), the selection of material shall be such as to
provide a shelf life of at least 2 years without affecting the operation of the flasher. Acceptance or approval of any
constituent material shall not be construed as a guaranty of the acceptance of the finished product.
3.3.1 Metals. Metals shall be of a corrosion-resistant type or shall be plated or treated to resist corrosion.
3.3.1.1 Dissimilar metals. When dissimilar metals are used in intimate contact with each other, protection against
electrolysis and corrosion shall be provided. The use of dissimilar metals in contact, which tends toward active
electrolytic corrosion (particularly brass, copper, or steel used in contact with aluminum or aluminum alloy), is not
acceptable. However, metal spraying or metal plating of dissimilar or aluminum base metals to provide suitable
abutting surfaces is permitted. Dissimilar metals should be as defined in 6.4. In hermetic seals, the 0.25 volt
difference between the header material and the housing material is not applicable.
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