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|  MIL-P-21397C(SHIPS)
(Copies of specifications, standards, drawings, and publications required by suppliers in connection with
specific procurement functions should be obtained from the procuring activity or as directed by the contracting
officer, )
2.2 Other PUblications. The following documents form a part of this specification to the extent
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specified herein, Unless otherwise indicated, the issue in effect on date of invitation for bids or request
for proposal shall apply.
UNIFORM CLASSIFICATION COMMITTEE
Uniform Freight Classification Rules
(Application for copies should be addressed to the Uniform Classification Committee, 202 Union Station,
516 West Jackson Boulevard, Chicago, Illinois 60606).
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)
A276 - Hot Rolled and Cold-Finished Stainless and Heat Resisting Steel Bars.
A283 - Low and Intermediate Tensile Strength Carbon-Steel plates of Structural Quality.
(Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race
Street, Philadelphia, Pa, 19103.)
NATIONAL BUREAU OF STANDARDS
Handbook H28 - Screw-Thread Standards for Federal Services.
(Application for copies should be addressed to the Superintendent of Documents, Government Printing
Office, Washington, D. C. 20402.)
SOCIETY OF AUTOMOTIVE ENGINEERS
SAE-1117 - Hot Rolled Carbon Steel Bars
(Application for copies should be addressed to the Society of Automotive Engineers, 485 Lexington Avenue,
New York, New York l0017.)
(Technical society and technical association specifications and standards are generally available for
reference from libraries. They are also distributed among technical groups and using Federal agencies,)
REQUIREMENTS
3.
3.1 General design. The design and construction of the pump and reducer shell be the lightest and most
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compact possible consistent with accessibility for maintenance and the replacement of wear parts. The pump
shall be designed for a discharge pressure of 400 pounds per square Inch gage (p.s.i.g. ) even though the
operating pressure will be lower (see 4.3.4), The pump shall have a maximum capacity of 2.5 gallons per hour
(gph) at 90 psig discharge pressure, adjustable within 5 percent from 0.5 gph to 2.5 gph. The pump shell be
preset at the factory at 0.5 gph for a simplex pump and 1.0 gph for a duplex pump unless otherwise specified
(see 6.1).
3.2 Materiel.
3.2,1 Material, general, Materiel shall be as specified herein. Material not definitely specified
shell be of the best quality used for the purpose in commercial practice, and shall be subject to review and
approval by the command or agency concerned. Material shall be free from all defects and imperfections that
might adversely affect the serviceability of the finished product.
3.2.2 Substitution of material.. The use of materiels other than those indicated will be considered when
the contractor shows the necessity for the substitution and the material proposed is readily obtainable.
Substitution of materials will require the specific approval of the command or agency concerned in each case.
3.2,3 Material for pumps shall be in accordance with table I.
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Table I - Material for pumps.
Application
Material.
Applicable document
Base plate
Steel, low carbon
ASTM A283
Casting
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Close grained, cast iron
40,000 lbs. tensile
Cylinder
Cres, class 316
ASTM A276
Plunger
Cresj class 4400 hardened to
ASTM A276
C58-60R
Valve body
Ores, class 316
ASTM A276
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