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Technical Data Sheet
PartsTable / COMPONENT / 540-3IN
540-3IN ✓ 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

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include material: FIBER AND RUBBER BODY, body_style: W/O MTG FACILITIES, TERMINAL(S) ON ONE SURFACE, body_width: 0.750 INCHES NOMINAL IN, core_width: 23.750 INCHES NOMINAL IN, body_height: 1.125 INCHES NOMINAL IN, body_length: 0.750 INCHES NOMINAL 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 4820-00-273-9736, 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
540-3IN
NSN: 4820-00-273-9736
FSC: 4820
CAGE: 21244 — WHEELING MACHINE PRODUCTS CO (USA)
SPECIFICATIONS
materialFIBER AND RUBBER BODY
body_styleW/O MTG FACILITIES, TERMINAL(S) ON ONE SURFACE
body_width0.750 INCHES NOMINAL IN
core_width23.750 INCHES NOMINAL IN
body_height1.125 INCHES NOMINAL IN
body_length0.750 INCHES NOMINAL IN
core_height18.000 INCHES NOMINAL IN
filler_neckINCLUDED
current_typeDC
actuator_typeFLUSH DRIVE WITH SLOT-HOLE
body_diameter1.266 INCHES NOMINAL IN
body_materialCOPPER ALLOY 268
NSN4820-00-273-9736
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 540-3IN · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
39-4Interchangeable
interchangeable cross-reference
interchangeable
112-4OHMSPORM20PCTInterchangeable
interchangeable cross-reference
interchangeable
2100-0077Interchangeable
interchangeable cross-reference
interchangeable
A-50498-BZ-1-CInterchangeable
interchangeable cross-reference
interchangeable
A-A-50498Interchangeable
interchangeable cross-reference
interchangeable
MILV16720Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 540-3IN?
540-3IN is a RESISTOR,VARIABLE,WIRE WOUND,NON.
What parts can replace 540-3IN?
There are 18 known substitutes for 540-3IN: 39-4, 112-4OHMSPORM20PCT, 2100-0077 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 540-3IN?
540-3IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-273-9736. 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