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|  MIL-C-16645A(SHIPS)
3.3.22 Painting.- All surfs-es to be painted shall be thoroughly cleaned and free from oil, grease,
mill scale, rust an loose welding beads, All external nonworking ferrous and aluminum surfaces shall
be painted with one coat of zinc chromate primer, in accordance with Specification JAN- P-735, and with
two coats of haze gray paint in accordance with Specification MIL-P-15130.
3.3.22 Identification plates.-
3.3.22.1 Identification plates shall be furnished. on each compressor and shall be type A or B in
accordance with Specification MIL-I- 15024, except that identification plates of plastic or aluminum are
not acceptable.
3.3. 23. 2 Identification plates shall be secured to equipment with corrosion resistant metallic
screws.
3.3.23.3 Identification plates shall contain data as follows:
(a)
Manufacturer's name.
(b)
Manufacturer's model or type and size.
Service application.
(c)
(d)
Manufacturer's serial number.
Salient design characteristics:
(e)
(1) Capacity.
(2) Pressure in pounds per square inch.
(3) Speed Of shaft in revolutions per minute.
(4) Brake horsepower.
(5) Working pressure at each stage.
(6) Lubricating oil pressure.
(7) Cooling water pressure required.
(8) Set pressures at each relief valve.
(9) Any special data vital to the unit,
(f) Contract number (and item number for multiple unit orders).
(9) Bureau of Ships stock number.
(h) Section for inspector's stamp,
3 .3. 23.4 Each driving unit and each accessory unit shall have an identification plate in accordance
with the applicable equipment specification.
3.4 Materials.-
2. 4.1 All material used in the construction of the compressors and associated equipment shall be
of the quality best suited for the purpose intended, and shall be strictly in accordance with the material
specifications as listed in table I.
3.4.2 The use of materials differing in properties from those specified for a given application
will be considered when the contractor shows the necessity for such substitution, the material proposed
is readily obtainable, and provided that the material is satisfactory to the bureau or agency concerned.
3.4.3 Where no specifications are specified herein for the material for certain parts, the material
used shall be of a type and quality consistent with that specified for associated parts in the compressor.
The use or substitution of manufacturer's material shall be subject to approval by the bureau or agency
concerned and shall be clearly indicated in a list submitted with the master drawings.
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