MIL-DTL-16878H
SAE INTERNATIONAL
SAE AMS 3249
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Ethylene Propylene (EPDM) Rubber Hydrazine-Base-Fluid Resistant
(Copies of these documents are available online at https://www.sae.org or from the SAE International,
400 Commonwealth Drive, Warrendale, PA 15096-0001.)
UNDERWRITERS LABORATORIES (UL)
UL 1581
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Reference Standard for Electrical Wires, Cables, and Flexible Cords
(Copies of these documents are available online at https://www.ul.com or from the Underwriters
Laboratories, Publication Stock, 333 Pfingsten Road, Northbrook, IL 60062-2096.)
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 sheets. In the event of any conflict between 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 in
accordance with 4.2.
3.3 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible, provided that the
material meets or exceeds the operational and maintenance requirements, and promotes economically
advantageous life-cycle costs.
3.4 Materials. Materials shall be as specified herein. When a material is not specified, a material
shall be used that will enable the insulated wire to meet the performance requirements of this
specification.
3.4.1 Conductors. Conductors shall be solid (see 6.1.3) or stranded as specified in table I, or as
approved by the contracting activity (see 6.2), for the specific wire. Each strand of the conductor shall be
of the same composition. When coated wires are used, individual strands shall be coated before
stranding. Each strand shall have the same coating. Conductors shall meet the requirements specified
in 3.4.1.1 through 3.4.1.7 before application of insulation.
3.4.1.1 Tin-coated copper conductors. Tin-coated copper conductors shall conform to ASTM B33 for
soft or annealed copper.
3.4.1.2 Silver-coated copper conductors. Silver-coated soft or annealed copper conductors shall
conform to ASTM B298 with a 40 microinches (minimum) thickness of silver.
3.4.1.3 Nickel-coated copper conductors. Nickel-coated soft or annealed copper conductors shall
conform to ASTM B355 with a 50 microinches (minimum) thickness of commercially pure nickel.
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