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PartsTable / COMPONENT / 40401-4 ASSY 40401-405
40401-4 ASSY 40401-405 ✓ 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: NICKEL ALLOY STEM, body_style: STRAIGHT THRU, furnished_items: TAILPIECE AND UNION NUT, regulation_type: AUTOMATIC SINGLE STAGE, style_designator: BALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-437-9438, 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
40401-4 ASSY 40401-405
NSN: 4820-01-437-9438
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialNICKEL ALLOY STEM
body_styleSTRAIGHT THRU
furnished_itemsTAILPIECE AND UNION NUT
regulation_typeAUTOMATIC SINGLE STAGE
special_featuresDIFFERS FROM OTHER VALVES ON DWING BY: VITON UNION END O RINGS; 2 BRONZE RETAINING RINGS; 5 - 30 PSI SPRING RANGE; SEAT MATERIAL: CAST MONEL ASTM-A494 (NICKEL ALLOY) COMP M35S
style_designatorBALL
valve_stem_designSINGLE SEAT
flow_control_deviceDISK
valve_loading_methodSPRING
outlet_pressure_range5.0 TO 30.0 CAMERA MOUNT
end_connection_quantity2
NSN4820-01-437-9438
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40401-4 ASSY 40401-405 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
9194770-83Interchangeable
interchangeable cross-reference
interchangeable
MS19060-4808Interchangeable
interchangeable cross-reference
interchangeable
40401-4Interchangeable
interchangeable cross-reference
interchangeable
1707-1Interchangeable
interchangeable cross-reference
interchangeable
33-1707-1Interchangeable
interchangeable cross-reference
interchangeable
844204 PIECE 29Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40401-4 ASSY 40401-405?
40401-4 ASSY 40401-405 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 40401-4 ASSY 40401-405?
There are 13 known substitutes for 40401-4 ASSY 40401-405: 9194770-83, MS19060-4808, 40401-4 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40401-4 ASSY 40401-405?
40401-4 ASSY 40401-405 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-437-9438. 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