MIL-PRF-6086F
This specification is approved for use by all Departments and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers two grades of petroleum-based lubricating oils for gears
(see 6.1). This oil is identified by NATO Code Numbers O-153 and O-155 (see 1.2).
1.2 Classification. Oil covered by this specification shall be classified as one of the following
two grades (see 6.2):
a.
Grade L Light; identified by military symbol OGL and NATO Code O-153 (see 6.4).
b.
Grade M Medium; identified by military symbol OGR and NATO Code O-155 (see 6.4).
2. APPLICABLE DOCUMENTS
2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 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, 4, or 5 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 (see 6.2).
ASTM International
ASTM D91
Standard Test Method for Precipitation Number of Lubricating Oils (DoD
Adopted)
ASTM D92
Standard Test Method for Flash and Fire Points by Cleveland Open Cup
Tester ( DoD Adopted)
ASTM D97
Standard Test Method for Pour Point of Petroleum Products (DoD
Adopted)
ASTM D130
Standard Test Method for Corrosiveness to Copper from Petroleum
Products by Copper Strip Test (DoD Adopted)
Standard Test Method for Kinematic Viscosity of Transparent and
ASTM D445
Opaque Liquids (and Calculation of Dynamic Viscosity) (DoD Adopted)
ASTM D892
Standard Test Method for Foaming Characteristics of Lubricating Oils
(DoD Adopted)
ASTM D974
Standard Test Method for Acid and Base Number by Color-Indicator
Titration (DoD Adopted)
ASTM D1500
Standard Test Method for ASTM Color of Petroleum Products (ASTM
Color Scale) (DoD Adopted)
Standard Practice for Calculating Viscosity Index from Kinematic
ASTM D2270
Viscosity at 40 and 100°C (DoD Adopted)
ASTM D2783
Standard Test Method for Measurement of Extreme-Pressure Properties
of Lubricating Fluids (Four-Ball Method)
(Copies of these documents are available online at https://www.astm.org or the ASTM International, 100
Barr Harbor Drive, West Conshohocken PA 19428-2959)
2
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