MIL-DTL-5002E
thorough rinsing and drying. Carburized or nitrided surfaces shall not be subjected to
passivation. Passivation is not required for corrosion resistant steels that are to be inorganically
coated.
3.8.7 Shot-peening and other residual compressive stress-inducing treatments. Shot-
peening, in accordance with SAE AMS2430 or SAE AMS2432, and other compressive stress-
inducing treatments may be used to obtain required fatigue behavior. Shot peening in accordance
with SAE AMS2430 and other stress-reducing treatments may be used to enhance stress
corrosion cracking resistance. The maximum temperatures for use on any part shall be not
greater than 50° F less than the recovery temperature of the stressed surface of the material
involved. Procedure details shall be prepared and listed on the applicable drawings or applicable
reference documents for parts. Specific attention shall be paid to use of recognized procedures,
equipment, materials, and control methods.
3.9 Coatings for corrosion control.
3.9.1 Steel and copper based parts. Unless otherwise specified in the contract or order, steel
and copper based parts shall be cadmium, nickel-cadmium, tin-cadmium, tin-lead, tin, aluminum
(steel parts only), zinc, nickel, or metallic-ceramic coated (see 3.6.1, 3.6.3 through 3.6.7, 3.6.10,
and 3.7).
3.9.2 Corrosion resistant materials. When approved by the cognizant engineering
organization, coatings may be omitted from corrosion and stress corrosion resistant materials,
except for the following conditions:
a. Where the intended use is such that added protection is warranted.
b. Where parts of these materials are in contact with dissimilar metals as specified in
MIL-STD-889.
c. Where unsealed crevices exist either within the part or the assembly of which it is
a component.
3.9.3 Sintered bearings. Sintered bearings of the oil-impregnated type shall not be plated.
Crevices between the bearing and the housing shall be sealed.
3.9.4 Non-corrosion resistant metal parts. All non-corrosion resistant metal parts used for
components of lubricating and hydraulic systems and components exposed to lubricants or
hydraulic fluids, except for tubing, shall be tin-cadmium plated in accordance with
MIL-P-23408. When approved by the cognizant engineering organization, alternative protective
systems may be used.
3.10 Coatings for functional purposes. Coatings for functional purposes shall be as
specified in 3.6.8, 3.6.11 through 3.6.17, and 3.7. Unless otherwise specified in the contract or
order, where the selected coating does not provide corrosion protection for the base metal and the
coated surface or portion thereof is exposed to corrosive environment, an undercoat of 0.0010 to
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