PartsTable
Technical Data Sheet
40398-909 ✓ Verified by PartsTable
· GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, material: COPPER ALLOY BODY, body_style: STRAIGHT THRU, regulation_type: MANUAL SINGLE STAGE, 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 4820-01-437-5397, 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
40398-909
NSN: 4820-01-437-5397
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialCOPPER ALLOY BODY
body_styleSTRAIGHT THRU
regulation_typeMANUAL SINGLE STAGE
flow_control_deviceDISK
valve_loading_methodSPRING
manual_control_methodSCREW
outlet_pressure_range5.0 TO 60.0 CAMERA MOUNT
end_connection_quantity2
end_item_identificationNIMITZ CLASS CVN
media_for_which_designedWATER, SALT
first_end_connection_typeUNTHREADED INTERNAL PIPE
NSN4820-01-437-5397
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 40398-909 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
BODY STYLE: STRAIGHT THRU
MEDIA FOR WHICH DESIGNED: WATER, SALT
FLOW CONTROL DEVICE: DISK
FIRST END STYLE DESIGNATOR: SOCKET W/BRAZING RING
FIRST END CONNECTION TYPE: UNTHREADED INTERNAL PIPE
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
FIRST END NOMINAL PIPE SIZE ACCOMMODATED: 0.750 INCHES IN
REGULATION TYPE: MANUAL SINGLE STAGE
TECHNICAL CHARACTERISTICS (FLIS)
BODY STYLESTRAIGHT THRU
MEDIA FOR WHICH DESIGNEDWATER, SALT
FLOW CONTROL DEVICEDISK
FIRST END STYLE DESIGNATORSOCKET W/BRAZING RING
FIRST END CONNECTION TYPEUNTHREADED INTERNAL PIPE
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
FIRST END NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES IN
REGULATION TYPEMANUAL SINGLE STAGE
MANUAL CONTROL METHODSCREW
VALVE LOADING METHODSPRING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
403989Interchangeable
interchangeable cross-reference
interchangeable
40398-09Interchangeable
interchangeable cross-reference
interchangeable
40398-901Interchangeable
interchangeable cross-reference
interchangeable
CVCPICInterchangeable
interchangeable cross-reference
interchangeable
CDS-40681 40398-911Interchangeable
interchangeable cross-reference
interchangeable
CDS-40681Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40398-909?
40398-909 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 40398-909?
There are 10 known substitutes for 40398-909: 403989, 40398-09, 40398-901 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40398-909?
40398-909 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-437-5397. This indicates validated use in U.S. government and defense supply chains.
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