MIL-DTL-24788A
3.2.1 Strainers. Strainers shall be 60-mesh screen or as specified by the procuring activity (see 6.2).
3.3 Materials. Materials and processes used by the manufacturer of the dry-break quick-disconnect assemblies
shall be suitable for the intended purpose and shall conform to the applicable specifications listed (see 2.2.1). All
wetted components of the quick-disconnect assembly shall be compatible with MIL-DTL-5624, MIL-DTL-83133,
and ASTM D1655.
3.3.1 Metals. Metals used in the manufacturing of the assemblies shall be lightweight aluminum alloys or
stainless steel suitable for use in a marine environment. All aluminum surfaces shall be protected to resist corrosion.
To prevent galvanic action, the use of dissimilar metals in contact with each other shall be minimized. Dissimilar
metals in contact with each other must be protectively coated. The use of magnesium, manganese, copper, zinc,
cadmium, or their alloys (alloys containing more than 5 percent of the subject materials) thereof is prohibited.
3.3.1.1 Component examination. Castings shall be clean, sound, and free of defects that would interfere with
components working as specified (see 4.4).
3.3.2 Test fluids. Where tests are conducted requiring the use of test fluids, the test fluids shall be in
accordance with MIL-PRF-680, MIL-DTL-5624, MIL-DTL-83133, MIL-PRF-7024, or ASTM D1655.
3.4 Design. The female half of the semi-dry-break, quick-disconnect coupling assembly shall not exceed the
envelope dimensions or the weight limitations shown on Figure 2. The semi-dry-break, quick-disconnect coupling
assembly shall connect or disconnect a hose and nozzle easily by a single person wearing winter gloves without
using tools. The semi-dry-break, quick-disconnect coupling assembly shall consist of a male and a female halve of
which the female half shall incorporate an automatically operated mechanism to prevent spillage of liquid from the
hose when the units are disconnected. A strainer of specified mesh opening shall be provided between the two
halves of the units. The strainer shall be removable from the male half for checking, cleaning, or replacing without
the use of tools. All normal replacement parts shall be the same regardless of the thread or inlet size of the unit.
The interface seal between the male and female halves shall engage the female half immediately when the semi-dry-
break in the female half is opened, or immediately thereafter to minimize any fuel leakage during connection.
During disconnection, the interface seal between the male and female halves shall disengage immediately when the
semi-dry-break in the female half is completely closed, or immediately thereafter to minimize any fuel leakage
during disconnection.
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