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PartsTable / COMPONENT / 40425-8 ASSEMBLY 40425-803
40425-8 ASSEMBLY 40425-803 ✓ 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: STEEL CORROSION RESISTING SEAT, body_style: STRAIGHT THRU, bulb_length: 12.000 INCHES NOMINAL IN, temp_rating: 60.0 FAHRENHEIT MINIMUM AND 90.0 FAHRENHEIT MAXIMUM DEGF, bulb_diameter: 0.125 INCHES NOMINAL IN, temp_adjustability: ADJUSTABLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-424-2675, 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
40425-8 ASSEMBLY 40425-803
NSN: 4820-01-424-2675
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SEAT
body_styleSTRAIGHT THRU
bulb_length12.000 INCHES NOMINAL IN
temp_rating60.0 FAHRENHEIT MINIMUM AND 90.0 FAHRENHEIT MAXIMUM DEGF
bulb_diameter0.125 INCHES NOMINAL IN
temp_adjustabilityADJUSTABLE
flow_control_deviceBELLOWS
thermostatic_elementLIQUID IMMERSION TYPE
end_connection_quantity2
first_end_connection_typeUNTHREADED INTERNAL PIPE
first_end_style_designatorSOCKET W/BRAZING RING
second_end_relationship_with_first_endIDENTICAL
NSN4820-01-424-2675
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40425-8 ASSEMBLY 40425-803 · 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
•
FIRST END STYLE DESIGNATOR: SOCKET W/BRAZING RING
•
FLOW CONTROL DEVICE: BELLOWS
•
TEMP ADJUSTABILITY: ADJUSTABLE
•
FIRST END CONNECTION TYPE: UNTHREADED INTERNAL PIPE
•
MATERIAL: STEEL CORROSION RESISTING SEAT
•
BODY STYLE: STRAIGHT THRU
•
BULB LENGTH: 12.000 INCHES NOMINAL IN
•
END CONNECTION QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END STYLE DESIGNATORSOCKET W/BRAZING RING
FLOW CONTROL DEVICEBELLOWS
TEMP ADJUSTABILITYADJUSTABLE
FIRST END CONNECTION TYPEUNTHREADED INTERNAL PIPE
MATERIALSTEEL CORROSION RESISTING SEAT
BODY STYLESTRAIGHT THRU
BULB LENGTH12.000 INCHES NOMINAL IN
END CONNECTION QUANTITY2
MATERIALSTEEL CORROSION RESISTING STEM
TEMP RATING60.0 FAHRENHEIT MINIMUM AND 90.0 FAHRENHEIT MAXIMUM DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
BC3590Interchangeable
interchangeable cross-reference
interchangeable
40425Interchangeable
interchangeable cross-reference
interchangeable
662-0363-010Interchangeable
interchangeable cross-reference
interchangeable
0818001X5U0 332MInterchangeable
interchangeable cross-reference
interchangeable
93436DCQCInterchangeable
interchangeable cross-reference
interchangeable
722905-51Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40425-8 ASSEMBLY 40425-803?
40425-8 ASSEMBLY 40425-803 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace 40425-8 ASSEMBLY 40425-803?
There are 11 known substitutes for 40425-8 ASSEMBLY 40425-803: BC3590, 40425, 662-0363-010 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40425-8 ASSEMBLY 40425-803?
40425-8 ASSEMBLY 40425-803 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-424-2675. 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