Comments, suggestions, or questions on this document should be addressed to: Commander, Naval Sea Systems
Command, ATTN: SEA 05Q, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or
emailed to CommandStandards@navy.mil, with the subject line “Document Comment”. Since contact information
can change, you may want to verify the currency of this address information using the ASSIST Online database at
http://assist.daps.dla.mil.
AMSC N/A FSC 9150
METRIC
MIL-PRF-17331J(SH)
W/ AMENDMENT 1
30 March 2007
SUPERSEDING
MIL-PRF-17331J
9 September 2003
PERFORMANCE SPECIFICATION
LUBRICATING OIL, STEAM TURBINE AND GEAR, MODERATE SERVICE
This specification is approved for use by all Departments and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers a single classification of steam turbine and gear lubricating oil, moderate
service, for use in main and auxiliary turbines and gears, air compressors, and certain hydraulic equipment, as well
as for general mechanical lubrication. The lubricating oil will be identified as follows:
Military symbol NATO symbol
2190 TEP O-250
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 documents cited in sections 3, 4, or 5 of this
specification, whether or not they are listed.
2.2 Government documents.
2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks 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.
FEDERAL STANDARDS
FED-STD-791 - Lubricants, Liquid Fuels, and Related Products; Methods of Testing.
(Copies of this document are available online at http://assist.daps.dla.mil/quicksearch/ or
http://assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D,
Philadelphia, PA 19111-5094.)
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