MIL-DTL-13444H
TABLE VI. Qualification inspection.
Requirement
Inspection
Number of
Inspection
samples 4/
paragraph
paragraph
Visual, configuration and mechanical
All
inspection 1/
Salt spray (fittings only) 1/
3 fittings
Visual examination
All hose
Proof pressure
assemblies
3 hose
Elongation and contraction1/
assemblies
3 hose
Burst pressure 1/
assemblies
Vacuum collapse resistance 1/
1 hose
3 hose/ or hose
Low temperature flexibility 1/ 2/
assemblies
Ozone resistance 2/
1 hose
Visual examination
Oil resistance 1/ 2/
5/
Fuel resistance 1/ 2/
5/
6 hose
Vibration resistance 2/
4.7.12
assemblies
2 type III hose
Hot oil circulation 1/ 2/
assemblies
Fungus resistance 2/ 3/
6 hose
assemblies
Proof pressure (30, 60, 90 days)
1/ These are destructive tests.
2/ These tests need only be done during initial qualification as long as materials, material
supplier, and designs and manufacturing processes have not changed.
3/ Manufacturers may certify to the qualifying activity that the materials used are fungus resistant in-
lieu-of performing this test.
4/ Reference the inspection paragraph for specimen sizes and hose or hose assembly sample
lengths.
5/ 3 specimens taken from the cover and 3 specimens taken from the inner tube.
4.5.3 Acceptance of qualification inspection data. Required qualification tests at the hose assembly
level that were already performed at the bulk hose level may be eliminated if documented approval has
been obtained from the qualifying activity.
4.5.4. Failures. One or more failures shall be cause for refusal to grant qualification.
4.5.5 Test plans and qualification reports.
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