MIL-DTL-85110B(AS)
3.1.1.5 Magnesium and magnesium alloys. Magnesium and magnesium alloy parts shall not
be used.
3.1.2 Non-metallic components. Non-metallic components shall be designed to minimize
deterioration caused by abrasion and exposure to sunlight, microorganisms, fungi, moisture, heat,
fuel, hydraulic and lubricating oil and grease, and salt spray. Protection shall be provided for
those non-metallic components for which strength degradation associated with abrasion or
exposure-induced deterioration can endanger the system user. All cover materials shall be flame
resistant and shall not produce toxic gases when subjected to high temperature or flame.
Materials that are nutrients for fungi shall be treated with a fungicide agent approved by the
Government acquiring activity. Under no circumstances shall polyester elastomers be used in
fabricating molded components or potting or sealing applications without specific approval.
Flexible epoxy resins and adhesives and other flexible materials having ester linkages shall be
tested for hydrolytic stability.
3.1.3 Lubrication. Lubricants and lubrication practices shall conform to the requirements of
MIL-STD-838. Any lubricants not meeting the requirements of MIL-STD-838 shall require
approval from the acquiring activity for their use. Lubricants shall function satisfactorily
throughout the temperature range as specified in 3.3.5.1. Choice of lubricants shall: (a) reduce
the hazards to non-metallic system components, (b) reduce damage to finishes adjacent to
location of lubricant application, and (c) eliminate the need for frequent relubrication by field
maintenance activities. If relubrication is required, choice of lubricants and practices should be
such that relubrication need be accomplished only during inspection, calibration or overhaul
periods.
3.1.4 Decalcomanias. Decalcomanias shall conform to the requirements of MIL-M-43719.
3.1.5 Potting compounds. Potting compounds shall be selected from those listed on the
Qualified Products List (QPL) for MIL-S-8516, MIL-S-23586, and MIL-M-24041 and which
have competed tests to the Government acquiring activity's satisfaction to demonstrate their
hydrolytic stability.
3.1.6 Fungus-proof materials. To the greatest extent practicable, the materials used in the
Repeatable Release Holdback Bar (RRHB) shall be non-nutrients for fungi. If materials that are
nutrients for fungi must be utilized, such materials shall be approved by the acquiring activity.
3.1.7 Corrosion protection. Protective coatings and finishes shall be in accordance with
MIL-F-7179 unless otherwise specified in the RRHB detail specification.
3.1.7.1 Finishes. General guidance in the application and control of organic finishes is
provided in MIL-F-18264 and MIL-HDBK-132.
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