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PartsTable / COMPONENT / 539561 PIECE 4
539561 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 PLATE,ADJUSTMENT,VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: WESTINGHOUSE 1/4 IN. REDUCING VALVE MODEL 539561 IN, general_characteristics_item_description: STEE;1.585 IN.

DIA;0.085 IN. THK IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-183-6000, 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
539561 PIECE 4
NSN: 4820-01-183-6000
FSC: 4820
CAGE: 24821 — ROSEMOUNT ANALYTICAL, INC. DIV PROCESS ANALYTICAL DIVISION (USA)
SPECIFICATIONS
end_item_identificationWESTINGHOUSE 1/4 IN. REDUCING VALVE MODEL 539561 IN
general_characteristics_item_descriptionSTEE;1.585 IN. DIA;0.085 IN. THK IN
NSN4820-01-183-6000
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 539561 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEE;1.585 IN. DIA;0.085 IN. THK IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEE;1.585 IN. DIA;0.085 IN. THK IN
END ITEM IDENTIFICATIONWESTINGHOUSE 1/4 IN. REDUCING VALVE MODEL 539561 IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
54204Interchangeable
interchangeable cross-reference
interchangeable
200123693Interchangeable
interchangeable cross-reference
interchangeable
A912682-000Interchangeable
interchangeable cross-reference
interchangeable
36625Interchangeable
interchangeable cross-reference
interchangeable
54203-6VInterchangeable
interchangeable cross-reference
interchangeable
54203Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 539561 PIECE 4?
539561 PIECE 4 is a PLATE,ADJUSTMENT,VALVE.
What parts can replace 539561 PIECE 4?
There are 11 known substitutes for 539561 PIECE 4: 54204, 200123693, A912682-000 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 539561 PIECE 4?
539561 PIECE 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-183-6000. 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