MIL-DTL-38726B
3.8 Identification of product. The adapter assembly shall be marked with the PIN, manufacturer's
name or trademark, and CAGE code.
3.9 Workmanship. The adapter assembly shall be free from cracks, laps, seams, burrs, longitudinal
and spiral tool marks, or any other defects that would adversely affect its service performance. The
sealing surface shall be smooth except that annular tool marks of 100 µin Ra, as defined in ASME B46.1,
shall be acceptable. All other machined surfaces shall not exceed 125 µin Ra.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as
follows:
a. Qualification inspection (see 4.4).
b. Conformance inspection (see 4.5).
4.2 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 or identified by the contractor. The establishment and maintenance of a
calibration system to control the accuracy of the measuring and test equipment shall be in accordance
with ISO 17025 and NCSL Z540.3 as applicable.
4.3 Inspection conditions. Unless otherwise specified, all required inspections shall be performed in
accordance with the test conditions specified in 4.7.
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.
4.4.1 Samples for qualification. Qualification samples shall be representative of the products
proposed to be furnished to this specification. Samples, consisting of 14 adapter assemblies conforming
to MS27404 of each size, shall be subjected to qualification testing. Six adapter assemblies conforming
to MS27404 of each size and material, shall be shall be tested as is; the remaining eight adapter
assemblies shall be used with hose conforming to MIL-DTL-5593 to construct four hose assemblies that
are 18 inches (457.2 mm) in length.
4.4.2 Qualification inspection routine. All samples shall be subjected to qualification testing in
4.4.3 Acceptance of qualification data. For identical requirements and test procedures, using an
identical fitting, qualification test data from MIL-DTL-5593 may be accepted as qualification test data for
MIL-DTL-38726 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.
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