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@navsea.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 www.dodssp.daps.mil.
AMSC N/A FSC 9150
1
METRIC
MIL-PRF-17331J
09 September 2003
SUPERSEDING
MIL-PRF-17331H(SH)
23 January 1984
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 and 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
documents cited in sections 3 and 4 of this specification, whether or not they are listed.
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