F-F-351F
6.4.4 Chloroform soluble PV resin. One brand of this material is designated as
"Geon 218" and is offered in particle size as follows:
a. 100 percent to pass through a 30-mesh sieve;
b. 90 percent to pass through an 80-mesh sieve; and
c. 60 percent to pass through a 200-mesh sieve.
This material is offered by the Geon Company, 1 Geon Center, Avon Lake, OH 44012.
6.4.5 Additive test oil (RFO-3-93). Further information on this oil (see 4.5.5) may be
obtained from Society of Automotive Engineers, Oil Filter Test Method Subcommittee,
400 Commonwealth Drive, Warrendale, PA 15096.
6.4.6 Viscous oil. Any type of viscous oil or lubricant may be used for the differential
pressure test described in 4.6.8. A SAE 140 transmission lubricant and No. 6 boiler fuel have
been found satisfactory.
6.4.7 Recycled materials. The use of recycled materials which meet the requirements of
the applicable material specifications without jeopardizing the intended use of the item should be
encouraged (see 3.3).
6.4.8 PIN. The PIN used in the specification slash sheets consist of the basic number of
this specification, the slash number from the appropriate sheet plus applicable dash number
corresponding to the number of parts per slash sheet.
6.4.9 Light duty, heavy duty, and senior size. These descriptions are leftover from
F-F-351D, and are differentiated according to size, flow capacity, and stringency of performance
requirements.
6.5 Cross reference of classifications. The following specification sheets form a part of
F-F-351F/GEN. These documents were formerly military standards associated with F-F-351D
(see 3.1).
a.
F-F-351/2 was derived from MS35342-1 and F-F-351D, figure 3.
b.
F-F-351/4 was derived from MS35345.
c.
F-F-351/6 was derived from MS35347.
d.
F-F-351/7 was derived from MS35802.
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