A-A-1710
May 30, 1981
COMMERCIAL ITEM DESCRIPTION
Gage, Tire Pressure, Precision Type
The General Services Administration has authorized the use of this commercial item description in preference of Federal Specification GG-G-91D.
This commercial item description covers new commercial precision type tire pressure gages.
SALIENT CHARACTERISTICS: The gages shall be new, precision type, with 12 inches plus or minus 2 inches overall length and be provided with an extension 3.5 to 4.5 inches in length having a standard bore dual-chuck foot to fit standard (0.302-32) threads used on tire valves. Each gage shall be provided with positive identification to avoid mistaking the gage from a general purpose gage. The barrel shall be so constructed as to fully enclose and shield the internal working mechanism. The inside of the barrel shall be corrosion resistant or treated to prevent corrosion along its entire length. The indicator bar shall be calibrated with marked graduations on all four sides. The graduation marks shall be stamped, etched, or otherwise set to a width and depth to provide a permanency at least equal to the life of the gage. The numerals indicating the graduation increment shall be a minimum of 0.0625 inch in height. Both graduations and numerals shall be clear and well defined to facilitate reading of the gage under normal service conditions. Two opposite sides of the indicator bar shall be marked in the inch-pound units of pounds per square inch (psi) and the alternate two sides shall be marked in the International System of Units (S1) in accordance with ASTM E 380. The S1 metric marking shall be in units of kilopascal (kPa). The inch-pound marking shall be graduated in 2 psi increments with a numeric marking every 10 psi, reading from 10 to 160 psig minimum range. The S1 marking shall be graduated in 20 kPa increments with a numeric marking every even 100 kPa, reading from 80 to 1100 kPa minimum range. The inch-pound marking and S1 marking shall be of different colors for ease of identification.
Gage shall be similar in design to the figure.
Accuracy of the precision gage at 70, plus or minus 50F (room temperature) shall be within plus or minus:
1 p.s.i. at 30 p.s.i.g.
1 p.s.i. at 50 p.s.i.g.
1.5 p.s.i. at 75 p.s. i.g.
2 p.s.i. at 120 p,s.i.g.
CERTIFICATION: The contractor shall certify that the product offered meets the salient characteristics of this description and that the product conforms to the producer’s own drawings, specifications, standards, and quality assurance practices and is the same product offered for sale in the commercial marketplace. The Government reserves the right to require proof of such conformance prior to first delivery and thereafter as may be otherwise provided for under the provisions of the contract.
RECOVERED MATERIALS: The manufacturer shall utilize recovered materials to the maximum extent possible.
PRESERVATION, PACKAGING, PACKING, AND MARKING. The preservation, packaging, and packing shall be in accordance with normal commercial practice and shall assure acceptance by common carrier and provide product protection against loss and damage during multiple shipments, handling, and storage. The shipping container shall be in compliance with the National Motor Freight Classification and Uniform Freight Classification. Marking shall be as specified in the contract or order
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