MIL-DTL-151F
with type A, B, C, or D of MIL-DTL-15024, except that aluminum alloy or plastic material will not be permitted. These
plates shall be installed on and furnished as a part of the equipment for which they are intended. They shall be
attached to the part of the equipment which will not ordinarily be renewed during its normal service life, and shall be
located in a readily accessible position where they can be read at all times without danger to personnel.
3.21.3
Identification plate markings. Data marked on identification plates shall include the information
specified in MIL-DTL-15024, the character of current and the voltage and Federal stock number.
3.22
Finish. The frame, base and guard shall be given a prime coat of zinc-chromate primer conforming to
TT-P-645, or any equally suitable primer approved by the procuring activity, and a coat of smooth, durable, baked-on
enamel conforming to type III, class 2 of MIL-E-15090.
3.23
Drawings. Drawings shall be submitted to the procuring activity concerned for approval prior to the
preproduction tests. Certification data shall not be furnished. Previously approved drawings need not be resubmitted.
3.23.1
Class 1 fans, type I and II. A list of material shall not be required. Drawings shall contain the following
information:
(a) An outline drawing giving front and side view, dimensions and mounting hole diameter and spacing.
(b) Brush length, width, and thickness, and number of brushes per stud, number of studs, manufacturer's
and Navy grade, and name of manufacturer.
(c) File number and date of the shock test report and file number and date of the Government's letter
forwarding the report.
(d) Weight of complete fan in pounds.
(e) List of insulation materials.
(f) Material and thickness of fan blade.
(g) Type of bearings if ball bearings, manufacturer's name and identification.
(h) Detail showing means provided for installing incoming cable.
(i) Permissible reduction in commutator diameter.
(j) Nominal power input and speed.
(k) Schematic circuit diagram.
(l) Test number and date of the test report applicable to the fan.
3.23.2
Class 2 fans, types INM and IINM. Drawings shall contain the information specified in 3.23.1 and the
following:
(a) Sectional view, with additional detailed and sectional views as necessary, showing and identifying
all parts of the fan.
(b) A list of material, as required.
(c) Material identification of all metal parts.
(d) Unit weights of all magnetic parts (parts whose permeability is equal to or greater than 2.0 after
fabrication).
3.24
Repair parts. When required (see 6.2), the following repair parts shall be provided:
1 set of brushes and 1 set of brush springs for each d.c. fan. (When brushes are supplied with springs as a
component part of each brush, it is not necessary to furnish springs as a separate item.)
1 repair motor with each 10 fans or fraction thereof. (Where start-run capacitors are used with a.c. fans, these
capacitors shall be included with the repair motor.)
3.25
Workmanship. The workmanship shall be first class in every respect.
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