TM-1-1500-344-23-2
AIRCRAFT VOLUME II
TECHNICAL MANUAL; CLEANING AND CORROSION CONTROL
APRIL 2009
TM-1-1500-344-23-2 - Page 148 of 240
8-4
NAVAIR 01-1A-509-2
TM 1-1500-344-23-2
15 April 2009
8-6.3. MIL-PRF-16173 (CORROSION PREVENTIVE
COMPOUND, SOLVENT CUTBACK). MIL-PRF-16173
covers five different grades of CPCs which can be
applied by brushing or dipping. Grades 1, 2, and 4 do not
displace water and must be applied to dried surfaces or
to surfaces which have first been treated with
MIL-PRF-81309.
8-6.3.1. Grade 1. A thick, hard, black CPC which can
be removed with difficulty using mineral spirits or paint
removers. It offers the most corrosion protection of all
the CPCs indoors and outdoors, and may be used at
temperatures down to 0
°
F (-18
°
C).
8-6.3.2. Grade 2. A thick, soft, greaselike, brown CPC
that remains tacky and can be removed with mineral
spirits. It protects under relatively severe conditions
and, given adequate maintenance touch-up as
necessary, can be used for most maximum protection
requirements. It may be used at temperatures down to
-40
°
F (-40
°
C).
8-6.3.3. Grade 3. A thin, soft film, water-displacing
CPC. It is not recommended for use on aluminum or
magnesium parts. Use MIL-PRF-81309 Type II as a
substitute.
NOTE
Remove MIL-PRF-16173 Grade 4 with
degreasing solvent (MIL-PRF-680 Type II) if
the coating is dark and prevents visual inspection
of the underlying surface for cracks and hydraulic
leaks.
8-6.3.4. Grade 4. A thin, relatively dry, semitransparent
film through which identification can be read. It may be
used at temperatures down to -40
°
F (-40
°
C).
CAUTION
If MIL-PRF-63460 is used in an area which will
later be sealed, allow at least 4 hours for the
solvent to evaporate prior to sealing. Although
MIL-PRF-63460 is a corrosion preventive
compound, its solvent vapors may cause
corrosion if not allowed to dissipate.
Do not use MIL-PRF-63460 on rubber or other
elastomeric parts. MIL-PRF-63460 contains
solvents which attack rubber "O" rings and
other elastomeric parts. Do not use as a direct
substitute for MIL-PRF-32033.
8-6.4. MIL-PRF-63460 (LUBRICANT, CLEANER, AND
PRESERVATIVE FOR WEAPONS AND WEAPON
SYSTEMS). MIL-PRF-63460 is a thin, water displacing,
protective, penetrating lubricant used for cleaning,
lubrication, and preservation of aircraft hinges and
small or large caliber weapons. This material has good
lubricating properties between -65
°
and 150
°
F (-54
°
and 65
°
C). It may be applied by brushing, dipping,
spraying, or from an aerosol container.
CAUTION
MIL-PRF-32033 suffers a loss of viscosity at
very low temperatures; therefore, it shall not be
used when temperatures can drop below -40
°
F
(-40
°
C).
8-6.5. MIL-PRF-32033
(LUBRICATING
OIL,
GENERAL PURPOSE, PRESERVATIVE (WATER
DISPLACING,
LOW
TEMPERATURE)).
MIL-PRF-32033 (supersedes VV-L-800) is a general
purpose, water displacing, lubricating oil with
preservative properties, and is intended for the lubrication
and preservation of aircraft components. It may be
applied by brushing, dipping, spraying, or from an
aerosol container. It should not be used in fuel cells or
fuel systems.
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