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PartsTable / COMPONENT / 20561-1003-1
20561-1003-1 ✓ 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 RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, duty_type: CONTINUOUS, end_style: SPRING END,PLAIN BOTH ENDS, body_width: 3.500 INCHES NOMINAL IN, bore_shape: STRAIGHT, time_delay: 0.01 SECONDS NOMINAL FIXED RELEASE TIME. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-256-3658, 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
20561-1003-1
NSN: 4820-01-256-3658
FSC: 4820
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
duty_typeCONTINUOUS
end_styleSPRING END,PLAIN BOTH ENDS
body_width3.500 INCHES NOMINAL IN
bore_shapeSTRAIGHT
time_delay0.01 SECONDS NOMINAL FIXED RELEASE TIME
body_height4.500 INCHES NOMINAL IN
body_length4.125 INCHES NOMINAL IN
thread_class2A SINGLE MOUNTING FACILITY A
bore_diameter40.0 MILLIMETERS NOMINAL MM
coil_quantity1
overall_width1.468 INCHES MAXIMUM IN
NSN4820-01-256-3658
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20561-1003-1 · 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 19
A66Interchangeable
interchangeable cross-reference
interchangeable
6308RSJDCInterchangeable
interchangeable cross-reference
interchangeable
6308RSJInterchangeable
interchangeable cross-reference
interchangeable
20561Interchangeable
interchangeable cross-reference
interchangeable
930-5-7Interchangeable
interchangeable cross-reference
interchangeable
KA5AG120VACInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20561-1003-1?
20561-1003-1 is a RELAY,ELECTROMAGNETIC.
What parts can replace 20561-1003-1?
There are 19 known substitutes for 20561-1003-1: A66, 6308RSJDC, 6308RSJ and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20561-1003-1?
20561-1003-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-256-3658. 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