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|  MIL-S-26547C
3.10 Dimensions.
The starter-generator shall conform to the dimensions
shown on Figure 3.
3.11 Weight. The starter-generator, shall be as light as practicable,
consistent with the requirements for performance, safety, and reliability, and
shall weigh not more than 41 pounds.
3.12
Finishes and protective coatings.
3.12.1 Cleaning, treating, and painting. Unless otherwise specified
herein, metal parts shall be cleaned, treated, and painted in accordance with
MIL-T-704. However, when plating is specified, the-cleaning of the metal shall
conform to MIL-S-5002.
3.12.2 Cadmium plating (steel parts). With the exception of the parts
listed below, all exterior steel parts, and other steel parts subject to
corrosion and not in constant contact with oil, shall be cadmium plated in
accordance with QQ-P-416 type II or III and Class 2 as applicable. In cases
where cadmium plating is considered impractical or undesirable an equivalent
treatment which is acceptable to the procuring activity shall be provided.
a.
Corrosion-resistant steel parts.
b.
Members or portions of members which act as bearing of journals.
c.
Magnet frame.
d.
Steel end-bells, brush cover band.
3.12.3 Anodic film for aluminum and aluminum parts. Aluminum and aluminum
alloy parts shall be covered by an anodic film conforming to MIL-A-8625.
3.12.3.1 The aluminum oxide film deposited by the treatment shall be
removed from actual contact area of all surfaces required to act as a path for
electric current and from local areas under screws, nuts, et cetera, used for
assembly or mounting purposes, to provide an adequate bonding connection.
3.12.3.2 Aluminum alloys which do not anodize satisfactorily shall be
coated with a chemical coat conforming to MIL-C-5541.
3.12.3.3 Where primary purpose of the treatment is to afford a suitable
paint base, chemical treatment in accordance with MIL-C-5541 may be used in
lieu of anodizing.
3.12.3.4 Castings containing nonaluminum alloys integral inserts may be
treated with chemical films in accordance with MIL-C-5541 in lieu of anodizing.
3.12.3.5 When abrasion resistance is a factor, chemical films in accordance
with MIL-C-5541 shall not be used in lieu of anodizing.
3.12.4 Magnesium-alloy parts. All magnesium-alloy parts shall be surface
treated for protection against corrosion in accordance with MIL-M-3171.
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