[INCH-POUND]
F-F-351F
September 1, 1999
SUPERSEDING
F-F-351E
May 15, 1998
FEDERAL SPECIFICATION
FILTERS AND FILTER ELEMENTS, FLUID PRESSURE:
LUBRICATING OIL, BYPASS AND FULL FLOW
The General Services Administration has authorized the use of this Federal Specification, by all
federal agencies.
1. SCOPE AND CLASSIFICATION
1.1 Scope. This specification covers oil filters and oil filter elements of bypass design; and
also oil filter elements of the outside-to-inside flow-path type of full-flow design for installation on
internal combustion engines to remove contaminants from lubricating oil (see 6.1).
1.2 Classification. Filters and filter elements shall be of the following types, classes, and
styles, as specified (see 6.2 and 6.4.9):
Type I
- Filter assembly, bypass design.
Class 1
- Light duty, regular size.
Style B
- Throw-away design.
Class 3
- Heavy duty, senior size.
Type II
- Filter elements, bypass design.
Class 1
- Light duty, regular size
Class 3
- Heavy duty, senior size.
Type IV
- Filter elements, full-flow design.
Classes 1 - 4
- See F-F-351/7 for discerning information.
2. APPLICABLE DOCUMENTS
2.1 Government publications. The following documents, of the issues in effect on date of
invitation for bids or request for proposal, form a part of this specification to the extent specified
herein.
Beneficial comments, recommendations, additions, deletions, clarifications etc. and any other data
which may improve this document should be sent by letter to: U.S. Army Tank-automotive and
Armaments Command, ATTN: AMSTA-TR-E/BLUE, Warren, MI 48397-5000.
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