MIL-DTL-26633E
4.2.2 Test equipment and inspection facilities. Test and measuring equipment and inspection
facilities of sufficient accuracy, quality, and quantity to permit performance of the required inspection
shall be established and maintained by the contractor. The establishment and maintenance of a
calibration system to control the accuracy of the measuring and test equipment (i.e. Industry Standard
and Military Standard) shall be in accordance with NCSL Z540.1 or equivalent.
4.3 Responsibility for compliance. All items shall meet all requirements of sections 3, 4, and 5. The
inspection set forth in this specification shall become a part of the contractor's overall inspection system
or quality program. The absence of any inspection requirements in the specification shall not relieve the
contractor of the responsibility of ensuring that all products or supplies submitted to the Government for
acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing
operations, is an acceptable practice to ascertain conformance to requirements, however, this does not
authorize submission of known defective material, either indicated or actual, nor does it commit the
Government to accept defective material.
4.4 Qualification inspection. Qualification inspection shall be performed at a laboratory acceptable to
the qualifying activity on sample units produced with equipment and procedures used in production.
Qualification inspection shall be performed on hose and hose assemblies.
4.4.1 Test plans and qualification reports.
4.4.1.1 Test plans. Test plans shall be prepared and submitted in accordance with the requirements
of the qualification activity. The method of qualification proposed by the contractor is subject to the
approval of the qualification activity. Manufacturers shall discuss with the qualifying activity the test
specimens and test plans. These plans shall state specifically the component requirement to be verified
during the test, such as test fixtures, setup, conditions, and identification of the previous failure criteria
shall be included as appropriate.
4.4.1.2 Qualification reports. Qualification reports shall be submitted in accordance with
requirements of the qualifying activity. As a minimum manufacturers shall submit a report identifying test
specimens, and test results.
4.4.3 Samples for qualification. Samples for qualification shall be representative of the products
proposed to be furnished to the Government. Samples shall be of one type and nominal size of hose and
shall be of the quantity and lengths specified in the applicable test method.
4.4.3.1 Air aging. Air aged samples shall be kept in air at a temperature of +160°F (71.11°C) for
seven days.
4.4.3.2. Qualification sampling. Ten hose assemblies, 24 ±6 inches (60.91 ±15.24 cm) long, shall be
fabricated from random samples of bulk hose and end fittings using production processes and
procedures. These hoses shall be subjected to the qualification tests. Samples for tensile and burst tests
may be reduced to 18 ±6 inches (45.72 ± 15.24 cm) long if necessary because of test equipment
limitations.
4.4.4 Inspection routine. The samples shall be subjected to the qualification inspections and tests
specified in table II. Allocation of test samples and testing shall be specified in table III. Test sequence,
besides examination of product, configuration, and cleanliness is at manufacturer's discretion.
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