MIL-PRF-83363E
This specification is approved for use by all Departments and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers one type of extreme pressure, anti-wear helicopter
transmission grease. This grease is identified by NATO Code Number G-396 (see 6.3).
2. APPLICABLE DOCUMENTS
2.1 General. The documents listed in this section are specified in sections 3 or 4 of this
specification. This section does not include documents cited in other sections of this specification or
recommended for additional information or as examples. While every effort has been made to ensure the
completeness of this list, document users are cautioned that they must meet all specified requirements of
documents cited in sections 3 or 4 of this specification, whether or not they are listed.
2.2 Non-government publications. The following documents form a part of this document to the
extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the
solicitation or contract.
ASTM International
ASTM D217
Standard Test Methods for Cone Penetration Of Lubricating Grease
(DoD Adopted)
ASTM D972
Standard Test Method for Evaporation Loss of Lubricating Greases and
Oils (DoD Adopted)
Standard Test Method for Low-Temperature Torque of Ball Bearing
ASTM D1478
Grease (DoD Adopted)
ASTM D2266
Standard Test Method for Wear Preventative Characteristics of
Lubricating Grease (Four-Ball Method) (DoD Adopted)
ASTM D2596
Standard Test Method for Measurement of Extreme-Pressure Properties
of Lubricating Grease (Four-Ball Method) (DoD Adopted)
ASTM D4057
Standard Practice for Manual Sampling of Petroleum and Petroleum
Products (DoD Adopted)
Standard Test Method for Oil Separation from Lubricating Grease
ASTM D6184
(Conical Sieve Method) (DoD Adopted)
(Copies of these documents are available online at https://www.astm.org)
2.3. Order of precedence. Unless otherwise noted herein or in the contract, in the event of a
conflict between the text of this document and the references cited herein (except for related specification
sheets), the text of this document takes precedence. Nothing in this document, however, supersedes
applicable laws and regulations unless a specific exemption has been obtained.
3. REQUIREMENTS
3.1 Toxicity. The materials shall have no adverse effect on the health of personnel when used
for their intended purpose.
3.2 Materials. The physical composition of the grease shall be such that the material passes the
requirements in section 3. The grease shall be a homogenous mixture of base fluids, thickener(s), and
additives as necessary. A formulation of polyol aliphatic ester, a fluorinated polysiloxane, a sodium
montmorillonite clay, fluorinated ethylene propylene copolymer, antimony dialkyldithiocarbamate, and
other additives as necessary is recommended but not mandatory.
2
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business