MIL-V-46727 Valve, Three Position, Four Way, Hydraulic, Manual Use Mil-Dtl-46725This specification covers two types of manually operated, three-position, four-way, hydraulic directional control valves with an operating pressure of 3000 pounds per square inch psi see 6.1.

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MIL-V-46727C(AT)

4.4.1  Preproduction inspection.  When specified (see 6.2), the preproduction sample shall consist of four valves.  Preproduction inspection shall consist of inspection as specified in table I.

4.4.2  Initial production inspection.  Unless otherwise specified (see 6.2), the Government shall select four valves, from the first 10 valves produced under the production contract, for initial production inspection.  Initial production units shall be inspected as specified in table I.

4.4.3  First article inspection failure.  Test item deficiencies during, or as a result of, the first article test shall be cause for rejection of the items until evidence has been provided by the contractor that corrective action has been taken to eliminate the deficiency.  Any deficiency found during, or as a result, of the first article test shall be evidence that all items already produced prior to completion of the first article test are similarly deficient unless contrary evidence satisfactory to the contracting officer is furnished by the contractor.  Such deficiencies on all items shall be corrected by the contractor.  The Government shall not accept products until first article testing is completed to the satisfaction of the Government.

TABLE I.  Classification of inspections.

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