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PartsTable / MRO / 4040-201
4040-201 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 SEAT, body_style: STRAIGHT THRU, temp_rating: 150.0 FAHRENHEIT MAXIMUM DEGF, overall_width: 4.000 INCHES NOMINAL IN, inclosure_type: ENCASED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-133-2444, 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
MRO→ MRO_GENERAL→ 4040-201
NSN: 4820-01-133-2444
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialNICKEL ALLOY SEAT
body_styleSTRAIGHT THRU
temp_rating150.0 FAHRENHEIT MAXIMUM DEGF
overall_width4.000 INCHES NOMINAL IN
inclosure_typeENCASED
overall_height3.500 INCHES NOMINAL IN
overall_length6.000 INCHES NOMINAL IN
flange_diameter2.750 INCHES NOMINAL IN
furnished_itemsBRAZING RING
regulation_typeAUTOMATIC SINGLE STAGE
special_features2 1/2-16 THREADS
NSN4820-01-133-2444
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4040-201 · 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: NICKEL ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
188251Interchangeable
interchangeable cross-reference
interchangeable
762Interchangeable
interchangeable cross-reference
interchangeable
BT762Interchangeable
interchangeable cross-reference
interchangeable
A-A-50553Interchangeable
interchangeable cross-reference
interchangeable
5320Interchangeable
interchangeable cross-reference
interchangeable
1924Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4040-201?
4040-201 is a VALVE,REGULATING,FLUID PRESSURE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4040-201?
There are 15 known substitutes for 4040-201: 188251, 762, BT762 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4040-201?
4040-201 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-133-2444. 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