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|  MIL-S-45387B(AT)
simultaneously with a mixture of 60 percent 0.035 to 0.064 inch diameter shot and 40 percent
0.017 to 0.033 inch diameter shot provided the required peening intensity and dimensional
requirement shall be maintained.
*
3.5.6 Presetting. Unless otherwise specified, the spring shall be preset by holding one end
and twisting and releasing the other end a minimum of 3 times. The degree of twist for the spring
shall be as shown on the applicable drawing.
3.6 Protective coating.
3.6.1 Cleaning. Prior to application of any coating, the spring shall be cleaned in accordance
with method II, of Specification TT-C-490.
*
3.6.2 Priming. The spring body shall be primed with primer coating conforming to
Specification TT-P-636 or TT-P-1757.
*
3.6.3 Tape covering. Body of the spring shall be covered with tape conforming to type EF-9
or MIL-I-15126. Tape shall be 1 1/4 to 3 inches wide and shall be spirally wound with a 50 percent
overlap. Free ends shall have an additional winding to prevent peelback.
3.6.4 Serration protection. Springs not intended to be immediately packaged shall be
suitably protected from transportation and handling damage.
4. QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase
order, the supplier is responsible for the performance of all inspection requirements specified herein.
Except as otherwise specified, the supplier may utilize his own facilities or any commercial
laboratory acceptable to the Government. The Government reserves the right to perform any of the
inspections set forth in the specification where such inspections are deemed necessary to assure
supplies and services conform to prescribed requirements.
4.1.1 Contractor quality control system. Unless otherwise specified by the procuring
activity, the contractor shall provide and maintain an effective Inspection and Quality Control
System acceptable to the Government covering the supplies under contract. A current written
description of the system shall be submitted to the contracting officer prior to initiation of
production. The contractor will not be restricted to the inspection station or to the method of
inspection listed provided that an equivalent limitation is included in the approved quality control
procedure. The contractor shall notify the Government and obtain approval for any change to the
written procedure that might affect the degree of control required by this specification or other
applicable documents referenced therein.
4
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