MIL-PRF-370J
otherwise specified (see 6.2), the end fittings shall be provided with protective, closed end,
reusable dust plugs or caps. Means (i.e. chain) shall be used to captively retain the dust plugs or
caps to the end fittings.
3.3.5.1 Coupling halves, quick-disconnect cam-locking type. For type A, B, and D hoses,
cam-locking end fittings shall be class 1 IAW A-A-59326. For type C hoses, all interface
dimensions of the cam-locking end fittings shall be IAW A-A-59326, but the working pressure
rating shall be not less than 150 pounds per square inch gage (psig). The 6-in. 150-psi rated
coupling can use more than two cam arms. Unless otherwise specified, dust caps or plugs for
cam-locking end fittings shall be in accordance with A-A-59326/10 and A-A-59326/11,
respectively. The coupling halves and gaskets shall be compatible for use with the fuels listed
in 3.4.2
3.3.5.2 Grooved end fittings. Grooved end of the hose fitting adapters shall be IAW
AWWA C606, Table 4 (Cut grooving dimensions - Steel, aluminum, brass, and other metallic
pipe of IPS dimensions). Hose adapter section of the grooved end fitting shall be sized to fit the
inside diameter of hose as specified in Table I for non-collapsible type hoses and Table II for the
collapsible type hoses. The grooved end fittings shall be rated at 150 psig.
3.3.5.3 Re-attachable screw-on hose fittings. The re-attachable compression type fitting
(see figure 1) shall consist of an outer sleeve, inner body/tailpiece, and wire compression grip. The
tailpiece shall have one end threaded with American National Standard Taper Pipe threads (NPT)
IAW ASME B1.20.1, for attachment to existing assemblies and a hose shank type end for hose
attachment. The hose shank end of the tailpiece shall have the sleeve threaded over the tailpiece
that allows the hose to be compressed and firmly secured to the tailpiece. When the sleeve is fully
engaged it shall extend beyond the hose end of the tailpiece but shall not cover any of the NPT
thread. The sleeve shall have at least four flat surfaces to permit the use of a standard wrench for
tightening or loosening.
3.3.5.3.1 Pull strength (assemblies with re-attachable fittings). The couplings, when
installed in accordance to the manufacturers' instructions, shall withstand a repeated, longitudinal
pull of 450 pounds (lb) without the fittings becoming detached from the hose.
3.3.5.4 One-time-use end fittings. The one-time-use internal expanded fittings shall have an
internal expanding tailpiece and external ferrule. The tailpiece shall grip and press the hose wall
against the external ferrule. When installed, these fittings shall have an inside diameter
conforming to the nominal inside diameter of the hose.
3.3.5.5 Quick-disconnect, sexless couplings. The sexless couplings shall be type 1, class A
or B, IAW A-A-59377. The couplings shall be reusable and sized to mate with type A, B, and D
hoses, size 06 and 08. In addition to the specification requirements, the couplings shall be
compatible with fuel as listed in 3.4.2.
3.3.6 Physical and chemical requirements of bulk hose. The requirements for the physical
and chemical properties, by hose type, shall be as specified in Table III. The requirement
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