MIL-PRF-62410B(AT)
two month period nor less than one test in a six month period. The tube assemblies shall be
subjected to the tests specified in Table V.
4.7 Methods of inspection.
4.7.1 Materials. Conformance to 3.2 through 3.2.3 shall be determined by inspection of
contractor records providing proof or certification that materials conform to requirements.
Applicable records shall include drawings, specifications, design data, receiving inspection
records, processing and quality control standards, vendor catalogs and certifications, industry
standards, test reports, and rating data.
4.7.2 Defects. Conformance to 3.2 through 3.2.3, 3.3 through 3.3.5, 3.5 and 3.6 shall be
determined by examination for the defects listed in Table IV. Examination shall be visual, tactile
or by measurement with standard inspection equipment.
4.7.3 Inspection conditions. Unless otherwise specified herein (see 6.2), all
examinations and tests shall be performed under the following conditions:
a. Air temperature:
73±18 °F (23±10 °C)
b. Barometric pressure:
28.5 +2,-3 inches of mercury
(96.5 +6.77,-10.15 kilopascals (kPa))
c. Relative humidity:
50±30 percent
4.7.4 Inspection equipment. The following test equipment or equivalent is
recommended for use in the performance of the inspections and tests specified herein:
a. Swage inspection profile gage - Deutsch, Number D12-9892.
b. Tube insertion tool - Deutsch, Number D9862.
c. Hydrostatic pressure supply unit capable of providing 0 - 10,000 psi (0 - 68.9 MPa)
static pressure with instrumentation accuracy of 10 percent of the component
tolerance.
d. Standard inspection equipment.
4.7.5 Tube assembly. To determine conformance to 3.3.1, the tube assembly shall be
inspected for completeness of assembly, configuration, and dimensional features of the
applicable tube drawing (see Figure 2).
4.7.6 Fitting attachment. The leakproof requirement of the joint shall be verified during
leakage (see 4.7.10) and proof tests (see 4.7.11). To determine conformance to 3.3.2, inspection
shall be performed during the swage operation utilizing the appropriate size profile gage
(see 4.7.4.a) to verify the proper tube insertion (tube into fitting) length and outside diameter of
the swage and for visual completeness of the operation. The swage equipment hydrostatic
pressure force shall be recorded and verified for conformance to 3.3.2.
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