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TRIBOLUBE 66

TRIBOLUBE-66 is intended for use in mild to high pressure systems where nonreactive with LOX and GOX is required, strong acids, oxidizers, fuels, and solvents is required. TRIBOLUBE-66 is qualified to MIL-PRF-27617, Type 1. Although this lubricant is very inert, newly exposed rubbing surfaces of aluminum and magnesium may react with the greases under certain conditions.

This grease is suitable for scuba use as well in small and large diameter ball, roller, needle, and plain bearings, threads, valves, gears, contacts, splines, ball screws,
and screw actuators and as an anti-seize thread compound. It is compatible with most elastomers and plastic seals, gaskets and O-rings.

 

Application:

The fuel resistant grease is intended for use in the lubrication of taper plug valves, gaskets, and bearings in fuel systems of military aircraft and ground support equipment. It is also suitable for use in the presence of liquid oxygen as a lubricant for valves, threads, and bearings in aerospace vehicles and supporting equipment. This material may not be suitable for aluminum or magnesium dynamic bearing lubrication because of possible ignition hazards.

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Temperature Range
-65º to 300ºF
NLGI Number
1
Unworked Penetration (ASTM D-1403), @ 77ºF
307
Worked Penetration (ASTM D-1403), 60 Strokes
313
Oil Separation (FED-STD-791, Method 321), 30 hrs @ 212ºF
3.1%
Oil Separation (FED-STD-791, Method 321), 30 hrs @ 300ºF
6.2%
Evaporation (ASTM D-2595), 22 hrs @ 300ºF
11.2%
Low Temperature Torque (ASTM D-1478), @ -65ºF, starting
5,070 gm-cm
Low Temperature Torque (ASTM D-1478), 60 min running
1,625 gm-cm
Copper Corrosion (FED-STD-791, Method 5309), 24 hrs @ 212ºF
1b
LoadWear Index (ASTM D-2596)
97.7
Last Non-seizure (ASTM D-2596), Load/Wear Scar
40 kg/0.33mm
Last seizure (ASTM D-2596), Load
400 kg
Steel-on-Steel Wear (ASTM D-2266), 1200 rpm, 40 kg, 1 hrs @ 167ºF, 52100 steel
1.16 mm
High Temperature Performance (ASTM D-3336), 10,000 rpm @ 400ºF, 5 lb.load
hrs
Film Stability & Steel Corrosion (Mil-G-27617D), 168 hrs @ 212ºF
Pass
Water Washout (ASTM D-1264), 1 hrs @ 105ºF
0.8%
Resistance to Aqueous Solution (FED-STD-791 Method 5415), 168 hrs @ 77ºF
Pass
LOX Impact Sensitivity (ASTM D-2512), 20 impacts from 1,100 mm
No Reaction
Fuel Solubility & Fuel Resistance (FED-STD-791 Method 5414), @ 77ºF
0.20%
Fuel Solubility & Fuel Resistance (FED-STD-791 Method 5414), 8 hrs @ 77ºF
Pass
Bomb Oxidation (ASTM D-942), 100 hrs @ 250ºF
0 psi
Close-up of shiny, yellow lubricant with swirling texture.
About TRIBOLUBE®

Engineered Lubrication Solutions for Demanding Applications

TRIBOLUBE synthetic lubricants are engineered to address complex lubrication challenges in demanding aerospace, industrial, automotive, and energy applications. Designed to perform where conventional lubricants reach their limits, TRIBOLUBE formulations deliver reliable performance under extreme temperatures, high loads, and harsh operating conditions—helping extend component life and support consistent system operation.