PartsTable
Technical Data Sheet
40398-901 ✓ 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, furnished_items: BRAZING RING, regulation_type: AUTOMATIC SINGLE STAGE, flow_control_device: DIAPHRAGM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-168-1956, 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
40398-901
NSN: 4820-01-168-1956
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialCOPPER ALLOY BODY
body_styleSTRAIGHT THRU
furnished_itemsBRAZING RING
regulation_typeAUTOMATIC SINGLE STAGE
flow_control_deviceDIAPHRAGM
valve_loading_methodSPRING
outlet_pressure_range5.0 TO 60.0 CAMERA MOUNT
end_connection_quantity2
media_for_which_designedWATER, FRESH
first_end_connection_typeUNTHREADED INTERNAL PIPE
first_end_style_designatorSOCKET W/BRAZING RING
NSN4820-01-168-1956
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 40398-901 · 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
MATERIAL: COPPER ALLOY BODY
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
OUTLET PRESSURE RANGE: 5.0 TO 60.0 CAMERA MOUNT
FIRST END CONNECTION TYPE: UNTHREADED INTERNAL PIPE
FIRST END STYLE DESIGNATOR: SOCKET W/BRAZING RING
MEDIA FOR WHICH DESIGNED: WATER, FRESH
BODY STYLE: STRAIGHT THRU
FIRST END NOMINAL PIPE SIZE ACCOMMODATED: 0.750 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY BODY
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
OUTLET PRESSURE RANGE5.0 TO 60.0 CAMERA MOUNT
FIRST END CONNECTION TYPEUNTHREADED INTERNAL PIPE
FIRST END STYLE DESIGNATORSOCKET W/BRAZING RING
MEDIA FOR WHICH DESIGNEDWATER, FRESH
BODY STYLESTRAIGHT THRU
FIRST END NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES IN
FURNISHED ITEMSBRAZING RING
END CONNECTION QUANTITY2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
403989Interchangeable
interchangeable cross-reference
interchangeable
40398-09 FIND 13Interchangeable
interchangeable cross-reference
interchangeable
40398-09Interchangeable
interchangeable cross-reference
interchangeable
930-02Interchangeable
interchangeable cross-reference
interchangeable
931-00Interchangeable
interchangeable cross-reference
interchangeable
40397-09 FIND 14Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40398-901?
40398-901 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 40398-901?
There are 17 known substitutes for 40398-901: 403989, 40398-09 FIND 13, 40398-09 and 14 more. Substitute compatibility should be verified for your specific system.
Is 40398-901 still available?
40398-901 is currently cancelled.
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