MIL-DTL-26894D
4.4.13 Surge pressure cycling. The test sample shall be a hose assembly completely
filled with the hydrocarbon fluid specified in table II or grade JP-4 fuel conforming to
MIL-PRF-5624. The specimen shall be held at atmospheric pressure and normal room
ambient temperature for 7 days. At the completion of this period, the hose assembly shall be
subjected to the following sequence of tests. Conformance shall be as specified in 3.4.13.
a. The fluid pressure shall be increased from 100 ±10 psig to 350 ±10 psig within 0.8
sec and then immediately decrease to 100 ±10 psig within 0.8 sec.
b. The pressure shall then be held at 100 ±10 psig for not less than 10 sec.
c. Steps "a" and "b" above shall be repeated until 500 cycles have been completed.
The number of cycles recorded shall be cumulative and tests may be run
continuously or intermittently.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as
specified in the contract or order (see 6.2). When actual packaging of materiel is to be
performed by DoD personnel, these personnel need to contact the responsible packaging
activity to ascertain requisite packaging requirements. Packaging requirements are maintained
by the Inventory Control Point's packaging activity within the Military Department 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.
6. NOTES
(This section contains information of a general or explanatory nature which may be helpful
but is not mandatory.)
6.1 Intended use. The hose assembly covered by this specification is intended for use as
an integral part of a gasoline or jet fuel-dispensing system for installation on a type MH-2
refueling trailer conforming to MIL-T-26887.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a. Title, number, and date of this specification, including any amendments.
b. Issue of DoDISS to be cited in the solicitation and, if required, the specific issue of
individual documents referenced (see 2.2 and 2.3).
c. Required length and quantities of hose (see 3.6.2).
d. Male or female couplings, if required (see 3.3.2).
e. Name and address of Government facility where the first article inspection samples
are to be submitted, if required (see 4.2 and 6.3).
f. Packaging requirements (see 5.1).
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