Mobilgrease 33 is a high-performance lithium-complex grease designed for general-purpose aircraft use. Its consistency falls between NLGI grades 1 and 2, providing outstanding lubrication performance across a wide temperature range and operating conditions.
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Overview
This grease utilizes a 100% polyalphaolefin base oil and premium additives, ensuring excellent structural stability and resistance to water wash-out. The lithium complex thickener system enhances performance, while the polyalphaolefin base oil offers exceptional thermal and oxidative resistance, low volatility, and superb low-temperature capability. Mobilgrease 33 is suitable for highly loaded anti-friction bearings, gears, actuators, instruments, and general airframe lubrication, operating effectively from –100ºF to 250ºF (–73ºC to 121ºC).
Features & Benefits
High viscosity index polyalphaolefin basestock for a very wide operating temperature range
Excellent lubricant film protection at high temperatures
Good storage stability with maintained grease structure integrity
Exceptional resistance to thermal and oxidative degradation for long service life
Low volatility minimizes base oil loss by evaporation
Resistance to degradation by water, preventing corrosion from acidic degradation products
Excellent protection against wear, corrosion, and rusting for reliable component protection
Extreme-pressure characteristics to prevent excessive wear under shock loads
High resistance to water washout for performance in adverse weather conditions
Specifications
NLGI Grade: 1.5
Color: Blue-Green
Thickener Type: Lithium Complex
Base Oil Type: Synthetic Polyalphaolefin (PAO), 100% ester-free
Operating Temperature Range: –100°F to 250°F (–73°C to 121°C)
Base Oil Viscosity @ 40°C (ASTM D 445): 12.5 mm²/s
Base Oil Viscosity @ 100°C (ASTM D 445): 3.2 mm²/s
Viscosity Index (ASTM D 2270): 185
Worked Penetration (60X) (ASTM D 217): 292 (0.1 mm)
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DISCLAIMER: Product information provided “as is.” Boeing may add, change, discontinue or remove this information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
