Aerospace Lubricants

Syn-Tech Ltd. has developed lubricants that meet strict military specifications and requirements including jet aircraft and helicopter applications.  These lubricants have provided excellent service in extreme environments.


Syn-Tech Ltd. Aerospace lubricants provide the following characteristics: 

  • Wide operating temperature ranges
  • Excellent lubricity
  • Excellent oxidation
  • Corrosion and water washout resistance.
  • Extreme pressure and antiwear properties that
    increase load capacity in gears and drive shafts.

Description Typical Application Spec. Temperature Range °C
National Stock Number (NSN) 9150-00-506-8497
Clay thickened
Fortified with extreme pressure, antiwear and corrosion additives, this lubricant was designed for extreme gear coupling applications under high temperature, high rpm and heavy loads with potential for misalignment and exposure to harsh environmental conditions. Applications include gear couplings for helicopters, gearboxes, splines, differentials, and screw jacks. Bell Helicopter
204-040-755 055
-40 to +176
National Stock Number (NSN) 9150-01-212-1409
Li complex thickened
A high load capacity semi-fluid grease designed for helicopter gearboxes. Fortified with extreme pressure, antiwear and corrosion additives for extreme stability under high centrifugal and rotational speeds. Applications include gearboxes, couplings, drives and bearings. Hughes/ McDonnell Douglas
HMS 20-1155
-54 to +135
NSN 9150-00-823-8049
Petroleum, Clay thickened A versatile, extreme pressure, anti-wear and anti-fretting lubricant. Fortified with molybdenum disulfide and graphite to protect metal surfaces during periods of high loads and extreme pressure. Excellent water washout, rust and oxidation resistance with good mechanical stability. Applications include splines and similar applications. Sundstrand MP01AA10 -20 to +150
NSN 9150-01-411-6545
Methacrylate polymer O-ring lubricant. Used to lubricate O-rings prior to pressing them into cavities, preventing chafing or tearing of the O-ring surface. It is also used as an assembly aid to “stick hold” parts together in multi- component mechanisms such as gearboxes, pumps and engine accessories. Sundstrand 57622 -
Ester, Clay thickened NS-5806-G is a non-melting extreme pressure grease designed for lubrication of aircraft slides and bearings. Fortified with molybdenum disulfide for excellent protection of sliding steel on steel against wear and seizure. Gelled with a non-melting bentonite thickener for extended operation at high temperature. Hamilton Sundstrand MS02.63 -73 to 150

datasheet graphic

Download An Aerospace Lubricants Tech Sheet


An ISO 9001:2008 Registered Company

Syn-Tech’s product line has evolved products that satisfy applications of many types. Experience and in-house testing facilities have generated the knowledge to create and modify new and existing products to perform under rigorous demands. Contact our offices for assistance in lubricant selection.



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