MIL-PRF-53027B(AT)
4.2 First article inspection.
4.2.1 Examination. The first article hose assembly shall be examined for the defects as
specified in table I. Presence of one or more defects shall be cause for rejection.
4.2.2 Tests. The first article hose assembly shall be subjected to the tests marked "X" of
table II. Samples for adhesion tests shall be cut from a length of hose. Samples of the synthetic
rubber compound shall be representative of materials used to fabricate the hose assembly. Failure
of any test shall be cause for rejection of the hose assembly.
4.3 Conformance inspection.
4.3.1 Sampling.
4.3.1.1 Examination. Sampling of hose assemblies for examination shall be in accordance
with ANSI/ASQC Z1.4.
4.3.1.2 Tests.
4.3.1.2.1 Elastomeric or rubber compound. Four test slabs, each 6 in. by 6 in. by
0.075 in. + 0.010 in. thick, of each elastomeric and natural rubber compound and of equivalent
cure used to fabricate the hose assemblies, shall be supplied with each lot.
4.3.1.2.2 Hose. Sampling of hose for tests shall be in accordance with
ANSI/ASQC Z1.4. Test sections shall be cut from the hose and shall be of sufficient length for
the performance of the required tests.
4.3.2 Examination. Sample hose assemblies selected in accordance with 4.3.1.1 shall be
examined as specified in 4.4.2.
4.3.3 Tests.
4.3.3.1 Individual. Each hose assembly shall be subjected to the test marked "X" of table
II. Failure of the tests shall be cause for rejection.
4.3.3.2 Samples. Samples selected in accordance with 4.3.1.2.1 and 4.3.1.2.2 shall be
subjected to the tests marked "X" of table II. Failure of any test shall be cause for rejection of the
hose assemblies represented by the samples.
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