XX-D-370D
3.2 First article. When specified (see 6.2.1), a sample shall be subjected to first article inspection (see 4.3. and 6.3).
3.3 Material. Material shall be as specified herein. Material not specified shall be selected by the contractor and shall be subject to all provisions of this specification.
3.3.1 Regulatory requirements. The offeror/contractor is encouraged to use recovered materials in accordance with Public Law 94-580 (41 CFR 1-1.25) to the maximum extent practical.
3.3.2 Material deterioration and control. The pump shall be fabricated from compatible materials, inherently corrosion resistant or treated to provide protection against the various forms of corrosion and deterioration that may be encountered in any of the applicable storage and operating environment to which the item may be exposed.
3.3.2.1 Dissimilar metals. Dissimilar metals, as defined in MIL-STD-889, shall be electrically insulated from one another to minimize or prevent galvanic corrosion. Insulation may be
provided by an insulating barrier such as a coat of epoxy primer conforming to MIL-P-23377, or corrosion inhibiting sealant conforming to MIL-S-81733 or chromate tape conforming to
MIL-G-20241. Protection against any galvanic corrosion could also be obtained by exclusion of the electrolyte if feasible.
3.3.2.2 Identification of materials and finishes. The contractor shall identify the specific material, material finish or treatment for use with components and sub-components, and shall make information available, upon request, to the contracting officer or designated representative.
3.4 Screw threads. All screw threads shall conform to Fed. Std. No. H28/7.
3.5 Environmental requirements.
3.5.1 Operating temperature. The pump unit shall perform as specified herein in any ambient temperature from minus 25 F to plus 110 F.
3.5.2 Storage temperature. The pump unit shall not be damaged when stored in any temperature from minus 30 F to plus 160 F.
3.6 Construction.
3.6.1 Cylinder base and head. The base of the pump unit shall be either malleable or cast iron and provide not less than 1/2 NPT female threads to accommodate the suction pipe. The
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