MIL-DTL-9479E (USAF)
3.4.6.2.2 Castings. Castings shall conform to MIL-STD-2175 (see 4.5.2).
3.4.6.2.3 Protective chemical treatment of metals. If aluminum alloy parts are utilized, they shall
be anodically treated in accordance with SAE AMS 2470. If noncorrosion-resistant steel parts
are utilized, they shall be zinc plated in accordance with ASTM B633. If magnesium alloy parts
are utilized, they shall be protected from corrosion in accordance with SAE AMS 2475 (see
4.5.2).
3.4.6.2.4 Protective organic treatment of metals. Subsequent to the application of approved
chemical treatment, all exposed metal surfaces shall be given at least one coat of primer
compatible with topcoat selected. A minimum of two coats of aircraft quality topcoat shall be
applied over all epoxy primer-treated surfaces of the basic ejection seat. If environmental
regulations permit, the use of a high solids polyurethane is acceptable (see 4.5.2).
3.4.6.4 Nonmetallic materials. Materials that are nutrients for fungi shall not be used in the
construction of the seat system. The material shall be capable of withstanding the wear and
handling incident to normal service usage (see 4.5.2).
3.4.6.4.1 Fungus. All nonmetallic materials used in the construction of the seat system shall
withstand exposure to fungi without deterioration when tested as specified (see 4.5.6.12).
3.4.6.4.2 Flame resistance. All nonmetallic materials shall meet the flame-resistance test specified
(see 4.5.7).
3.4.6.5 Construction.
3.4.6.5.1 Methods. Riveting, welding, or other suitable attachment methods may be used in the
construction of the seat system where permanent attachments are required. Fittings and joints
requiring disassembly for maintenance shall be attached by bolting or other suitable removable
attachment (see 4.5.2).
3.4.6.5.2 Projections. The seat system shall be free of any projections or sharp edges which
could snag, jam, or damage clothing and equipment, injure the seat occupant or maintenance
personnel, foul personal equipment, jeopardize operation of seat components, or interfere with
recovery parachute operation attachment (see 4.5.2).
3.4.6.5.3 Workmanship. The seat system, including all parts and accessories, shall be constructed
in accordance with commonly accepted industrial workmanship standards attachment (see 4.5.2).
3.4.6.5.4 Drain holes. Drain holes shall be provided in the bottom of the seat bucket and in any
enclosures where water could accumulate (see 4.5.2).
3.4.6.6 Colors. Unless otherwise specified, the color of the basic ejection seat shall be medium
gray, color 36231 of FED-STD-595. The headrest and armrest upholstery shall be black, color
37038. The ejection controls shall have alternate stripes of 3/4-inch wide orange-yellow, color
13538, and 1/4-inch wide black, color 37038 (see 4.5.2).
3.4.6.7 Identification of product. Equipment, assemblies, and pans shall be marked for
identification in accordance with MIL-STD-130. A nameplate, permanently and legibly marked in
accordance with MIL-STD-130, shall be securely attached to the ejection seat in a location where
it can be read without removal of the seat from the aircraft attachment (see 4.5.2).
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