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403989 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

VALVE,REGULATING,FLUID PRESSURE. Key specifications include material: COPPER ALLOY BODY, body_style: STRAIGHT THRU, regulation_type: MANUAL SINGLE STAGE, special_features: PART NAME ASSIGNED BY CONTROLLING AGENCY IS 3/4 INCH TRAC STYLE "H" PRESSURE REDUCING VALVE IN, flow_control_device: DISK, valve_loading_method: SPRING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2915-00-798-8538, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
403989
NSN: 2915-00-798-8538
FSC: 2915
CAGE: 66503 — WOODWARD, INC. DIV FUEL SYSTEMS AND CONTROLS (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
body_styleSTRAIGHT THRU
regulation_typeMANUAL SINGLE STAGE
special_featuresPART NAME ASSIGNED BY CONTROLLING AGENCY IS 3/4 INCH TRAC STYLE "H" PRESSURE REDUCING VALVE IN
flow_control_deviceDISK
valve_loading_methodSPRING
manual_control_methodSCREW
outlet_pressure_range50.0 TO 150.0 CAMERA MOUNT
end_connection_quantity2
media_for_which_designedWATER, SALT
first_end_connection_typeUNTHREADED INTERNAL PIPE
first_end_style_designatorSOCKET W/BRAZING RING
NSN2915-00-798-8538
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,REGULATING,FLUID PRESSURE TITLE COMPONENT PN 403989 MFR VALVE,REGULATING,FLUID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
40398-09Interchangeable
interchangeable cross-reference
interchangeable
40398-901Interchangeable
interchangeable cross-reference
interchangeable
40398-9Interchangeable
interchangeable cross-reference
interchangeable
CVCPICInterchangeable
interchangeable cross-reference
interchangeable
40398-905Interchangeable
interchangeable cross-reference
interchangeable
40398-909Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 403989?
403989 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 403989?
There are 10 known substitutes for 403989: 40398-09, 40398-901, 40398-9 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 403989?
403989 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2915-00-798-8538. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026