MIL-DTL-8789F
4.6.2.3 Nonconformance of P1 inspections. If a sample fails any P1 inspection test, acceptance and
shipment of the product shall be discontinued until corrective action acceptable to the qualifying activity
has been taken. After the corrective action has been taken, sampling or P1 inspection, see table V, shall
be repeated on additional samples. At the discretion of the qualifying activity this may include all
sampling or P1 inspections, or the inspection which the original sample failed. However final acceptance
of the hose or hose assemblies shall be withheld until the P1 inspection has shown that the corrective
action was successful.
4.6.2.4 Disposition of P1 test specimens. Test specimens which have been subjected to P1 testing
are considered damaged and shall not be delivered on a contract or purchase order.
4.6.3 P2 inspections. P2 inspections as specified in table VII, shall be performed on 2 fittings at least
once per year regardless of the total number of fittings produced. The fittings shall be of any bend angle
and joint configuration. The 2 fittings selected shall be as representative as possible of those produced
during the period, in terms of material used for the threaded parts. The size of the 2 fittings shall be
determined based on the fitting size that is most likely to fail if there was a defect. If there has been no
production during the past year, P2 inspections are not required.
TABLE VII. P2 inspections. 1/
Requirement
Requirement
Test
paragraph
method
Over-tightening torque
1/ If no failures have occurred after two consecutive 12
month intervals then P2 testing can be done every
36 months.
4.6.3.1 Disposition of test specimens. Test specimens, which have been subjected to P2 inspection
testing, are considered damaged and shall not be delivered on a contract or purchase order.
4.6.3.2 Nonconformance of P2. If a sample fails the P2 inspection test acceptance, shipment of the
product shall be discontinued until corrective action acceptable to the qualifying activity has been taken.
After the corrective action has been taken P2 inspection, see table VII, shall be repeated on additional
samples. At the discretion of the qualifying activity this may include all inspections, or the inspection
which the original sample failed. Sampling and P1 inspections may be reinstituted. However final
acceptance of the hose or hose assemblies shall be withheld until the P2 inspection has shown that the
corrective action was successful.
4.6.3.3 Alternate conformance inspection criteria. When the identical hose is manufactured and
tested in accordance with MIL-DTL-8788, and the identical hose assemblies manufactured and tested in
accordance with MIL-DTL-8790, using identical fittings in accordance with MIL-DTL-8789, it is not
necessary to test the fittings to meet the conformance inspection data requirements of this specification.
This applies when substantially identical test requirements and test procedures are required for the
assembly and the individual components and upon documented approval by the qualifying activity.
4.7 Additional QPL test and reporting requirements.
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