MIL-DTL-25579G
4.2.2.1 Hose assemblies reusable. Qualification of hose assemblies with reusable end fittings may be
extended, to include hose assemblies of the same size and class but with reusable end fittings of another type
of interface (see applicable specification sheet), provided that the following additional samples are submitted
for testing and approval:
Two hose assemblies, of the same size and class as those submitted in 4.2.1, with reusable end
fittings for each additional type of interface are desired.
4.2.2.2 Hose assemblies permanent. Qualification of hose assemblies with permanent end fittings may be
extended, to include hose assemblies of the same size and class but with permanent end fittings of another
type of interface (see applicable specification sheet), provided that the following additional samples are
submitted for testing and approval:
a. Two hose assemblies, of the same size and class as those submitted in 4.2.1, with permanent end
fittings for each additional type of interface are desired.
b. Two separate permanent end fittings of the same type of interface, size, and class as submitted in
item "a".
4.2.3 Qualification inspection routine. All hose assembly samples shall be subjected to qualification testing
in accordance with table VI and in the sequence specified in table VII. However, the additional hose assembly
samples specified in 4.2.2 and the separate permanent end fittings specified in 4.2.1 and in 4.2.2.2 shall be
subjected to only the tests and sequences specified in table VII.
4.2.4 Acceptance of qualification data. For identical requirements and test procedures, using an identical
fitting, qualification test data from MIL-DTL-27267 hose and from MIL-DTL-27272 fittings shall be accepted as
qualification test data for MIL-DTL-25579 providing that documented approval has been obtained from the
qualifying activity. Unless otherwise approved by the qualifying activity, qualification test data from one
manufacturer shall not be accepted for another.
4.2.5 Failures. One or more failures shall be cause for refusal to grant qualification approval.
4.2.6 Nonconformance of qualification. If the summary of test results indicates nonconformance with the
requirements specified herein but corrective measures acceptable to the qualifying activity have not been
taken, action may be taken to remove the failing product from the QPL.
4.2.6.1 Sampling and periodic tests-limited production: In the case where there has been limited production,
and the specification limit for the applicable sampling or periodic control tests has not been reached within a
three year period since the last sampling or periodic test, the required sampling or periodic control tests shall
be performed using the small lot test sample quantities as specified in the procurement specification within 30
calendar days of the end of the three year period.
4.3 Conformance inspection.
4.3.1 Individual tests. Inspection of the product for delivery; shall consist of subjecting each hose assembly
to the individual tests specified in table VI. Any item failing to meet the requirements of the individual tests shall
be immediately removed from the lot.
4.3.2 Sampling tests. Hose assemblies, selected to form an inspection sample (see 4.3.2.1), shall be
subjected to the sampling tests specified in table VI.
4.3.2.1 Inspection sample. An inspection sample shall consist of hose assemblies, of one inner diameter
size, randomly selected from the production lot without regard to quality. Eight samples from a lot size of 3,000
hose assemblies or one sample from each smaller lot size of 375 hose assemblies or smaller shall be
subjected to the sampling tests.
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