INCH-POUND
MIL-PRF-25675C
26 NOVEMBER 1997
SUPERSEDING
(See 6.8)
PERFORMANCE SPECIFICATION
VALVES, CHECK, MINIATURE, HYDRAULIC,
AIRCRAFT AND MISSILE
This specification is approved for use by the Department of the Air Force and is available for use by all
Departments and Agencies of the Department of Defense.
1.
SCOPE
1.1
Scope. This specification covers hydraulic, spring-loaded, normally closed aircraft and missile hydraulic
system check valves with operating pressures up to 3,000 pounds per square inch (psi) and operating temperatures
from -65° to 450°F.
1.2
Classification. There are two styles of check valve, flared and flareless, with seven sizes of each style
designated by part number suffixes -4, -5, -6, -8, -10, -12, and -16. The flared and flareless check valves are shown in
Figures 1 and 2, respectively. The check valve required should be indentified in 6.2.
2.
APPLICABLE DOCUMENTS
2.1
General. The documents listed in this section are cited 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 these lists, document users are cautioned
that they must meet the requirements specified in the documents cited in sections 3 and 4 of this specification, whether
or not they are listed.
2.2
Government documents.
2.2.1 Specifications and standards. The following specifications and standards form a part of this document to the
extent specified herein. Unless otherwise specified, the applicable issues of these documents are those listed in the
specific issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto
cited in the solicitation (see 6.2).
SPECIFICATIONS
DEPARTMENT OF DEFENSE
MIL-H-5606
-
Hydraulic Fluid, Petroleum Base; Aircraft, Missile And Ordnance
MIL-H-83282
-
Hydraulic Fluid, Fire Resistant, Synthetic Hydrocarbon Base, Aircraft,
Metric, NATO Code Number H-537
Beneficial comments (recommendations, additions, deletions) and any pertinent data that may be of use in improving
this document should be addressed to: Oklahoma City Air Logistics Center/TICLA, 3001 Staff Drive, Suite 1AE1-
101A, Tinker AFB, OK 73145-3036 by using the Standardization Document Improvement Proposal (DD Form 1426)
appearing at the end of this document or by letter.
AMSC N/A
FSC 4820
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