MIL-V-7899C
30 April 1979
)
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MILITARY
VALVES, CHECK,
sUPERSEDING
MIL-V-7899B
20 September 1974
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SPECIFICATION
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AIRCRAFT FUEL SYSTEM
,.
This specification is approved for use by all Departments’
and Agencies of the Department of Defense.
1.
SCOPE
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1.1 scoDe. This specification’ covers low-pressure check valves suitable for
use with hydrocarbon fuels, fuel vapors, and air.
1.2
Classification.
The check”valves shall be of the following classes based
on the applicable temperature ranges of MIL-F-8615.
Low Temp Fuel
High Temp
Clasp
and Ambient
Fuel
Ambient
I
‘)
A
+50c(Jj70F) 570fJ(1350F) 71OC(16OOF)
B
-550C(-670F),
940C(2000~)
1770C(3500F)
c
+50C(-670~)
1500C(3000F) 3150C(6000F)
2.
APPLICABLE DOCUMENTS
,
2.1
Issue of documents.
The following documents, of the issue in effect on
date of invitation for bids or request for proposal, form a part of this
specification to the extent specified herein:
SPECIFICATIONS
FEDERAL
,P-D-680
Dry Cleaning solvent
TT-S-735
Standard Test Fluids; Hydrocarbon
VV-G-109
Gasoline, Unleaded
MILITARY
MIL-D-1OOO
Drawings, Engineering and Associated Lists
MIL-P-5315
Packing”,”Preformed,Hydrocarbon Fuel Resistant
MIL-G-5572
Gasoline, Aviation: Grades 80/87, 100/130, 115/145
1’
Beneficial comments (recommendations,additions, deletions) and any
pertinent data which may be of use”in
improving this document should
be addressed to:
ASD/ENESS, Wright-Patterson AFB, OH
45433 by using
the self-addressed Standardization Document Improvement Proposal
(DD Form 1426) appearing at the end ofthis document or by letter.
FSC 2915
I
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