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Technical Data Sheet
PartsTable / COMPONENT / A3S1/4
A3S1/4 ✓ 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 A3S1/4 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-221-5526, 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
A3S1/4
NSN: 4810-01-221-5526
FSC: 4810
CAGE: 78462 — PARKER-HANNIFIN CORP DIV SPORLAN DIVISION (USA)
SPECIFICATIONS
Part NumberA3S1/4
NSN4810-01-221-5526
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A3S1/4 · 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
•
MATERIAL: COPPER ALLOY BODY
•
FLOW CONTROL DEVICE NORMAL OPERATION POSITION: CLOSED
•
OPERATING PRESSURE: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
FLOW CONTROL DEVICE: PISTON
•
MOUNTING POSITION: HORIZONTAL
•
VALVE OPERATION METHOD: SOLENOID
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY BODY
FLOW CONTROL DEVICE NORMAL OPERATION POSITIONCLOSED
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALALUMINUM ALLOY FLOW CONTROL DEVICE
FLOW CONTROL DEVICEPISTON
MOUNTING POSITIONHORIZONTAL
VALVE OPERATION METHODSOLENOID
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
CONNECTION STYLESOCKET (TUBE) ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
3514Interchangeable
interchangeable cross-reference
interchangeable
A3514Interchangeable
interchangeable cross-reference
interchangeable
4C621386Interchangeable
interchangeable cross-reference
interchangeable
4C621386AInterchangeable
interchangeable cross-reference
interchangeable
50 CAL 20-1639Interchangeable
interchangeable cross-reference
interchangeable
979964-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A3S1/4?
A3S1/4 is a A3S1/4.
What parts can replace A3S1/4?
There are 9 known substitutes for A3S1/4: 3514, A3514, 4C621386 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A3S1/4?
A3S1/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-221-5526. 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