MIL-PRF-46170E
Record the transmittance reading. (NOTE: The comparison described in 4.3.1.2 may be
performed in a differential mode, as an alternative.)
4.5.2 Compatibility. Samples of the hydraulic fluid in amounts of 25 mL, 50 mL and 75
mL shall be mixed with samples from each of the fluids previously approved under this
specification. Total volume of each mixture shall be 150 mL. Mixtures shall be prepared in
250 mL stoppered flasks. The flasks shall be thoroughly agitated and then stored in an oven at
135°C for 3 hours. At the end of this time, none of the mixtures shall show any signs of
sediment, turbidity or crystallization. The sample shall then be stored at 40°C for 3 hours.
Slight turbidity, at this time, that later disappears will be permitted in the samples. Compatibility
tests described herein shall also be conducted with a representative fluid qualified to MIL-PRF-
5606, MIL-PRF-6083, MIL-PRF-83282, and MIL-PRF-87257.
4.5.3 Product identification. The hydraulic fluid unit containers shall be examined for
the proper product warning/identification.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be 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's packaging activities within the Military Services or Defense Agency,
or within the military service's system commands. 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 that may be helpful, but is
not mandatory.)
6.1 Intended use. The hydraulic fluid covered by this specification is intended for use in
recoil mechanisms and hydraulic systems of military ground vehicles and equipment. If used in
other mechanisms or systems, a study should be made to determine its applicability for such
usage, with particular attention given to operation at high and low temperatures and the topic of
elastomer compatibility. The hydraulic fluid is rust inhibited and may be used as a preservative
medium for hydraulic systems and components. The hydraulic fluid has a wide range of
operating temperatures and is thermally stable, corrosion inhibited, and fire resistant. The
combination of all of these fluid properties is not found in commercial hydraulic fluids. This
fluid is adopted for military use by NATO countries. (NOTE: TYPE II of revision "C" is no
longer available.)
6.2 Acquisition requirements. Acquisition documents must specify the following:
a. Title, number and date of this specification.
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