PartsTable
Technical Data Sheet
40203-4 ASSEMBLY 40203-402 ✓ 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

The VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 922 BODY, body_style: STRAIGHT THRU, valve_size: 1.250 INCHES IN, bulb_length: 12.000 INCHES NOMINAL IN, temp_rating: 80.0 FAHRENHEIT MINIMUM AND 120.0 FAHRENHEIT MAXIMUM DEGF, bulb_diameter: 1.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-533-0791, 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
40203-4 ASSEMBLY 40203-402
NSN: 4820-01-533-0791
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922 BODY
body_styleSTRAIGHT THRU
valve_size1.250 INCHES IN
bulb_length12.000 INCHES NOMINAL IN
temp_rating80.0 FAHRENHEIT MINIMUM AND 120.0 FAHRENHEIT MAXIMUM DEGF
bulb_diameter1.000 INCHES NOMINAL IN
furnished_itemsBONNET AND TAILPIECE AND INDICATOR
temp_adjustabilityADJUSTABLE
flow_control_deviceSTEM AND INTEGRAL DISK
two-way_valve_actionREVERSE ACTING
face_to_face_distance7.218 INCHES NOMINAL IN
end_connection_quantity2
NSN4820-01-533-0791
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 40203-4 ASSEMBLY 40203-402 · 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 R-405 STEM
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281, CLASS B FED SPEC SINGLE MATERIAL RESPONSE STEM
MEDIA FOR WHICH DESIGNED: WATER, SALT
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY R-405 STEM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281, CLASS B FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALNICKEL ALLOY R-405 SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281, CLASS B FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALCOPPER ALLOY 922 BODY
MEDIA FOR WHICH DESIGNEDWATER, SALT
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
PART NAME ASSIGNED BY CONTROLLING AGENCY1.250 " TRAC STYLE "B" REVERSE ACTING THERMOSTATIC TEMPERATURE REGULATING VALVE ASSEMBLY
FIRST END CONNECTION TYPESILVER BRAZING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
20P102-16Interchangeable
interchangeable cross-reference
interchangeable
40-203-4Interchangeable
interchangeable cross-reference
interchangeable
WBE-F-4Interchangeable
interchangeable cross-reference
interchangeable
9020.1600.02Interchangeable
interchangeable cross-reference
interchangeable
4418614Interchangeable
interchangeable cross-reference
interchangeable
4418599Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40203-4 ASSEMBLY 40203-402?
40203-4 ASSEMBLY 40203-402 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace 40203-4 ASSEMBLY 40203-402?
There are 6 known substitutes for 40203-4 ASSEMBLY 40203-402: 20P102-16, 40-203-4, WBE-F-4 and 3 more. Substitute compatibility should be verified for your specific system.
Is 40203-4 ASSEMBLY 40203-402 still available?
40203-4 ASSEMBLY 40203-402 is currently cancelled.
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