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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.
First
Quality conformance
Title
Requirement
Inspection
article
Exami-
Tests
nation
Materials and
3.2 thru
4.7.1
X
construction
3.3.4
X
Defects (see 4.5.2
3.3, 3.3.3, thru
4.7.2
and table II)
3.3.5, 3.5 thru
X
3.7
4.7.3.1
X
Rated flow and
3.4.1
X
pressure drop
X
X
Operating torque
3.4.2
4.7.3.2
X
Operating pressure
3.4.3
4.7.3.3
X
Proof pressure
3.4.4
4.7.3.4
X
X
Burst pressure
3.4.5
4.7.3.5
X
Internal leakage
3.4.6
4.7.3.6
Endurance
3.4.7
4.7.3.7
X
High temperature
3.4.8.1
4.7.3.8
X
Low temperature
3.4.8.2
4.7.3.9
X
Fungus
3.4.8.3
4.7.3.10
X
Salt spray
3.4.8.4
4.7.3.11
X
Valve spool
3.4.8.4.1
4.7.3.11.1
corrosion
X
Sand and dust
3.4.8.5
4.7.3.12
X
Shock
3.4.8.6
4.7.3.13
X
Vibration
3.4.8.7
4.7.3.14
8
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