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PartsTable / COMPONENT / 40478-1 PIECE 4
40478-1 PIECE 4 ✓ 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 STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, valve_size_for_which_designed: 1.250 INCHES IN, valve_type_for_which_designed: REGULATOR, valve_model_number_for_which_designed: STYLE J,P/N 40478-101. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-233-4875, 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
40478-1 PIECE 4
NSN: 4820-01-233-4875
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialSTEEL
valve_size_for_which_designed1.250 INCHES IN
valve_type_for_which_designedREGULATOR
valve_model_number_for_which_designedSTYLE J,P/N 40478-101
NSN4820-01-233-4875
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40478-1 PIECE 4 · 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
•
VALVE TYPE FOR WHICH DESIGNED: REGULATOR
•
VALVE SIZE FOR WHICH DESIGNED: 1.250 INCHES IN
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: STYLE J,P/N 40478-101
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
VALVE TYPE FOR WHICH DESIGNEDREGULATOR
VALVE SIZE FOR WHICH DESIGNED1.250 INCHES IN
VALVE MODEL NUMBER FOR WHICH DESIGNEDSTYLE J,P/N 40478-101
MATERIALSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
103200Interchangeable
interchangeable cross-reference
interchangeable
103200ADXInterchangeable
interchangeable cross-reference
interchangeable
2195-10129-02-3Interchangeable
interchangeable cross-reference
interchangeable
10-3100 ITEM 3Interchangeable
interchangeable cross-reference
interchangeable
1017494Interchangeable
interchangeable cross-reference
interchangeable
1017495Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40478-1 PIECE 4?
40478-1 PIECE 4 is a STEM,FLUID VALVE.
What parts can replace 40478-1 PIECE 4?
There are 7 known substitutes for 40478-1 PIECE 4: 103200, 103200ADX, 2195-10129-02-3 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40478-1 PIECE 4?
40478-1 PIECE 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-233-4875. 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