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.

LPS-2 only meets Mil. specs for corrosion control, not lubrication.

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However, the original Mil Spec is obsolete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 preferred 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

Aerosol MIL-PRF-7870C by Zip-Chem part # D-5261NS - - This is a hard-to-find item

UPDATE --

It seems Lane Aviation no longer sells maintenance items.

This source should work

Krayden Distributors

Gil Alexander