View source for Grease and Fluid References

== Grease and Fluids - as called out by the Grumman Maintenance Manual ==

'''Manual Reference - MIL-G-7711'''

This Mil Spec is now obsolete, if you check the records this comes up -

DOCUMENT:     MIL-G-7711
TITLE:        GREASE, AIRCRAFT, GENERAL PURPOSE (USE MIL-G-81322)

So the replacement is '''MIL-G-81322'''
This spec. is met by -

Aeroshell Grease 22

Mobil Grease 28


'''Manual Reference - MIL-L-7870'''

This is a lightweight instrument oil, and is often substituted with LPS-2 by many mechanics.

The updated Mil Spec is '''MIL-PRF-7870C'''
This is met by -

Aeroshell Fluid 3

Royco 363

The above two are sold as liquids and are applied by brush or an oil can spout.

It is also made by Zip-Chem (part number D-5261NS) as an aerosol which is much easier to apply.


'''Manual Reference - MIL-G-25760'''

This spec. is met by -

Aeroshell Grease 16

However, the original Mil Spec is obsolete

DOCUMENT:     MIL-G-25760
TITLE:        GREASE, AIRCRAFT, BALL AND ROLLER BEARING, WIDE TEMPERATURE RANGE (ASG) (S/S BY MIL-G-81322)

So the replacement is '''MIL-G-81322'''
This spec. is met by -

Aeroshell Grease 22

Mobil Grease 28


In the Grumman Manual, this grease is only called out for the wheel bearings.  The updated (April, 2007) Cleveland brake/Wheel Service Manual now calls out for Mobil Aviation Grease SHC 100 as the prefered grease. The manual does allow "Other Approved Greases" though, so the Aeroshell 16 or 22 are acceptable.


'''Where to buy'''

Aircraft Spruce

Aeroshell 22 

Mobil 28


Lane Aviation has a web order site

Aerosol MIL-PRF-7870C by Zip-Chem (hint - search for 7870) ''This is a hard-to-find item''

They also sell Mobil 28


''Gil Alexander''