MILITARY SPECIFICATION
LUBRICATING OIL, HELICOPTER TRANSMISSION SYSTEM,
SYNTHETIC BASE
This amendment forms a part of DOD-L-85734(AS), dated 21 February 1986, and is
approved for use by the Naval Air Systems Command, Department of the Navy, and is available
for use by all Departments and Agencies of the Department of Defense.
PAGE 6
4.4: Add “h. Silicone rubber compatibility test.”
PAGE 7
4.5.1: Insert the following additional change into the list of procedural modifications to
the compatibility of turbine lubricating oils test, Method 3403 of FED-STD-791:
o
C shall be used in place of
1,1,1-Trichloroethane (O-T-620).”
PAGE 8
4.5.4: Insert the following additional change into the list of modifications to the
corrosion and oxidation stability test of FED-STD-791, Method 5308:
“Petroleum ether with a boiling range of 30 to 60
o
C shall be used in place of
1,1,1-Trichloroethane (O-T-620).”
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TABLE I, column 2, opposite Rubber compatibility: Change limits from “0-25” to
“5-25” for both H and F rubbers.
AMSC N/A 1 of 2 FSC 9150
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
METRIC
DOD-L-85734(AS)
AMENDMENT 3
15 September 1999
SUPERSEDING
AMENDMENT 2
25 August 1993
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