MIL-PRF-26626F
3.5.7 Low temperature. The hose assembly shall withstand exposure to -65o + 5oF for
48 hours (see 4.6.6).
3.5.8 Low temperature bending. After being exposed to liquid oxygen for 15 minutes
and then to -65o + 5oF for 30 minutes, the hose assembly shall withstand 180o bending (see
4.6.7).
3.5.9 Low temperature vibration. With liquid oxygen maintained in the hose assembly,
the hose assembly shall be subjected to a vibration at a double amplitude of 0.06 inch and a
frequency changing from 10 to 50 to 10 Hz (see 4.6.8).
3.5.10 Odor. The hose assembly shall be odorless (see 4.6.9).
3.5.11 Cleanliness. The hose assembly surfaces shall be free of contaminants such as
rust, scale, dirt, paints, oils, hydrocarbons, and cleaning compounds (see 4.6.10).
3.5.12 Identification. The hose assembly shall be permanently and legibly marked with
the following data (see 6.2)
a.
Nomenclature.
b.
Cure date.
c.
Specification.
d.
PIN.
e.
Manufacturer's CAGE code.
f.
Manufacturer's part number.
3.6 Interchangeability. All parts having the same manufacturer's part number shall be
functionally and dimensionally interchangeable.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a.
Qualification inspection (see 4.2).
Conformance inspection (see 4.3).
b.
4.2 Qualification inspection. Qualification inspection shall consist of subjecting six hose
assemblies to all tests specified in 4.6.
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