MIL-DTL-52618F
TABLE III. Individual inspections.
Test
Requirement paragraph
Test paragraph
Visual
Threads
4.4.3 Inspection lot. An inspection lot shall consist of all fittings covered by a single specification
sheet produced under essentially the same conditions and offered for inspection at one time.
4.5 Test methods.
4.5.1 Visual inspection. Fittings shall be examined to ensure conformance with this specification.
Continuous examination shall be performed to assure compliance with the following requirements:
a. Specification sheets (see 3.1).
b. Design, construction and physical dimensions (see 3.4).
d. Marking (see 3.7).
e. Cleanliness (see 3.8).
f. Workmanship ( see 3.9).
4.5.2 Threads. Fittings selected from the sample shall be inspected for conformance with
ASME B1.20.1.
4.5.3 Proof pressure tests (see 3.5). Fittings selected from the sample lot shall be subjected to air
proof pressure test and hydrostatic proof pressure test.
4.5.3.1 Air proof pressure test. Each of the sample fittings selected shall be subjected to an air
pressure test at normal plant air pressure of at least 90 psig (0.62 MPa) for a length of time sufficient for
an examination for leaks, but not less than one minute. Any evidence of air leakage shall constitute
failure of this test.
4.5.3.2 Hydrostatic proof pressure test. Sample pipe fittings shall be subjected to a hydrostatic
pressure of 250 psig (1.72 MPa) for 1 minute. Any evidence of leakage or sweating shall constitute
failure of this test.
accordance with MIL-A-8625.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the
contract or order (see 6.2). When packaging of material is to be performed by DoD or in-house contractor
personnel, these personnel need to contact the responsible packaging activity to ascertain packaging
requirements. Packaging requirements are maintained by the Inventory Control Point's packaging
activities within the Military Service or Defense Agency, or within the Military Department's System
Command. Packaging data retrieval is available from the managing Military Department's or Defense
Agency's automated packaging files, CD-ROM products, or by contacting the responsible packaging
activity.
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