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Technical Data Sheet
PartsTable / COMPONENT / 144WS-1/4
144WS-1/4 ✓ 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 144WS-1/4 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 4820-01-259-8771, 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
144WS-1/4
NSN: 4820-01-259-8771
FSC: 4820
CAGE: 90664 — WALWORTH CO MARINE DIV (USA)
SPECIFICATIONS
Part Number144WS-1/4
NSN4820-01-259-8771
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 144WS-1/4 · 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
•
MEDIA FOR WHICH DESIGNED: STEAM FIRST RESPONSE
•
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
VALVE OPERATION METHOD: MANUAL
•
STYLE DESIGNATOR: ANGLE
•
CONNECTION STYLE: SOCKET WITH BRAZING RING ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY BODY
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES ALL ENDS IN
VALVE OPERATION METHODMANUAL
STYLE DESIGNATORANGLE
CONNECTION STYLESOCKET WITH BRAZING RING ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
24-3002Interchangeable
interchangeable cross-reference
interchangeable
DM-366Interchangeable
interchangeable cross-reference
interchangeable
611A5946Interchangeable
interchangeable cross-reference
interchangeable
138-120Interchangeable
interchangeable cross-reference
interchangeable
906JInterchangeable
interchangeable cross-reference
interchangeable
10390Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 144WS-1/4?
144WS-1/4 is a 144WS-1/4.
What parts can replace 144WS-1/4?
There are 16 known substitutes for 144WS-1/4: 24-3002, DM-366, 611A5946 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 144WS-1/4?
144WS-1/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-259-8771. 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