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40399-911 ✓ 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 material: NICKEL ALLOY STEM, special_features: NEXT HIGHER ASSY; SEA WATER PRESSURE REDUCING VALVE,150 LB CLASS,1IN TRAC STYLE H LBS, flow_control_device: DISK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-464-4451, 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
40399-911
NSN: 4820-01-464-4451
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
special_featuresNEXT HIGHER ASSY; SEA WATER PRESSURE REDUCING VALVE,150 LB CLASS,1IN TRAC STYLE H LBS
flow_control_deviceDISK
NSN4820-01-464-4451
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40399-911 · 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: RUBBER FLOW CONTROL DEVICE
•
FLOW CONTROL DEVICE: DISK
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER FLOW CONTROL DEVICE
SPECIAL FEATURESNEXT HIGHER ASSY; SEA WATER PRESSURE REDUCING VALVE,150 LB CLASS,1IN TRAC STYLE H LBS
MATERIALNICKEL ALLOY STEM
FLOW CONTROL DEVICEDISK
MATERIALNICKEL ALLOY AND COPPER ALLOY SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
40-399Interchangeable
interchangeable cross-reference
interchangeable
40399-903Interchangeable
interchangeable cross-reference
interchangeable
40399-901Interchangeable
interchangeable cross-reference
interchangeable
40399-910Interchangeable
interchangeable cross-reference
interchangeable
40399-9 ASSY 40399-910Interchangeable
interchangeable cross-reference
interchangeable
40399-410Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40399-911?
40399-911 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 40399-911?
There are 8 known substitutes for 40399-911: 40-399, 40399-903, 40399-901 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40399-911?
40399-911 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-464-4451. 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