MIL-DTL-8794F
4.8.19 Leakage test (see 3.5.16). A hose assembly when subjected to the leakage test in
accordance with ASTM D380 shall meet the requirements of 3.5.16. The following details shall apply:
a. The hose assembly shall be subjected to 70 percent of the burst pressure shown in table II and
held for 5 minutes using water or hydraulic fluid as the test fluid.
b. The pressure shall then be reduced to 0 psi, after which the pressure shall again be raised to 70
percent of the burst pressure and held for an additional 5 minutes.
c. The surface of the hose shall be carefully checked during this period for any wicking or leakage of
the test fluid that might indicate leakage of the hose.
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 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
packaging activities within the Military Service or Defense Agency, or within the military service's system
command. Packaging data retrieval is available from the managing Military Service 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 that may be helpful, but is not
mandatory.)
6.1 Intended use. The hose when assembled to MIL-DTL-5070 adapters are used in aircraft for
hydraulic, fuel and engine oil system hose assemblies in accordance with MIL-DTL-8795. Other hose
assemblies utilizing this hose with the proper firesleeving may be used within fire zones. This hose is
intended for use in systems with an operating environment from -65°F to +250°F.
6.1.1 Military unique rationale. The rubber hose assemblies described by this specification require
qualification (material, part, and process), and on site audits, which include traceability of parts. The
rubber hose assemblies must be capable of interoperability and compatibility which can only be assured
through strict adherence to the detail specification sheet requirements. Commercial parts are not
designed to be interchangeable with aircraft hydraulic fuel or oil systems.
6.2. Acquisition requirements. Acquisition documents should specify the following:
a. Title, number, and date of this specification.
b. PIN (see 1.2)
c. The period of time, if any, for which a waiver will be granted allowing delivery of hose marked
"MIL-H-8794" in lieu of the new designation "MIL-DTL-8794" (see 3.8).
d. Packaging requirements (see 5.1).
e. Shelf life requirements (see 6.2.1).
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