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|  MIL-F-62564(AT)
b. Clean ferrous metals (Rockwell hardness C40 through C47) in accordance with the
applicable method (I through VI) specified in TT-C-490. Treat in accordance with
type I or III of TT-C-490 (bake for hydrogen embrittlement relief as required).
c. Clean ferrous metals (Rockwell hardness C48 and over) in accordance with method I
of TT-C-490. Acid solutions shall not be used for cleaning.
3.5.1.2 Priming. Apply a primer coating in accordance with MIL-P-53030, MIL-P-53022 or
MIL-P-52192, composition optional. The dry film thickness of the primer shall be not less than
1.0 mil.
3.5.1.3 Finishing. Apply an epoxy-polyamide coating conforming to type I of MIL-C-22750
or a modified high solids epoxy which meet the performance requirements of MIL-C-22750.
The dry film thickness of the coating shall be not less than 1.0 mil. The color shall match color
chip number 24533 (green) of FED-STD-595.
3.5.2 Aluminum.
3.5.2.1 Treatment. Treat in accordance with class 1A of MIL-C-5541.
3.5.2.2 Priming. Apply a primer coating in accordance with MIL-P-53030, MIL-P-53022 or
MIL-P-23377, composition optional. The dry film thickness of the primer shall be not less than
1.0 mil.
3.5.2.3 Finishing. Apply an epoxy-polyamide coating conforming to type I of MIL-C-22750
or a modified high solids epoxy which meets the performance requirements of MIL-C-22750.
The dry film thickness of the coating shall be not less than 1.0 mil. The color shall match color
chip number 24533 (green) of FED-STD-595.
3.6 Identification marking.
3.6.1 Nameplates. Nameplates shall be as specified in either a or b:
a. Material and construction shall conform to MIL-P-514, type III, composition A,
class 2, or composition C. Composition C material shall conform to GG-P-455,
type II, grade A, class 1. The nameplate shall be attached with suitable metal
fasteners to achieve a permanent installation (see 4.7.2).
b. Adhesive-backed aluminum foil shall conform to MIL-P-19834, type I, glossy, except
backing sheet, which may be of paper, shall be removable intact by stripping without
use of water or other solvents (see 4.7.2).
3.6.2 Product marking. The fan shall be identified in accordance with MIL-STD-130 and
Drawing 12292080 (see 4.7.2).
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