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Technical Data Sheet
PartsTable / COMPONENT / 068L603/Y-544
068L603/Y-544 ✓ 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 068L603/Y-544 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 4820-00-287-3328, 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
068L603/Y-544
NSN: 4820-00-287-3328
FSC: 4820
CAGE: U2692 — JOHNSON CONTROLS LTD, YORK NAVY SYSTEMS (GBR)
SPECIFICATIONS
Part Number068L603/Y-544
NSN4820-00-287-3328
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 068L603/Y-544 · 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
•
BONNET ATTACHMENT METHOD: THREADED
•
VALVE OPERATION METHOD: MANUAL
•
FEATURES PROVIDED: BONNET PACKING
•
MATERIAL: COPPER ALLOY SEAT
•
CONNECTION STYLE: SOCKET (TUBE) ALL ENDS
•
MEDIA FOR WHICH DESIGNED: REFRIGERANT 22 SECOND RESPONSE
•
BONNET TYPE: INSIDE SCREW
TECHNICAL CHARACTERISTICS (FLIS)
BONNET ATTACHMENT METHODTHREADED
VALVE OPERATION METHODMANUAL
FEATURES PROVIDEDBONNET PACKING
MATERIALCOPPER ALLOY SEAT
CONNECTION STYLESOCKET (TUBE) ALL ENDS
MEDIA FOR WHICH DESIGNEDREFRIGERANT 22 SECOND RESPONSE
MATERIALCOPPER ALLOY BODY
BONNET TYPEINSIDE SCREW
MATERIALPLASTIC POLYAMIDE NYLON FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY STEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
271-5901-958524REV4PC19Interchangeable
interchangeable cross-reference
interchangeable
X23425-6Interchangeable
interchangeable cross-reference
interchangeable
271-5901-958524Interchangeable
interchangeable cross-reference
interchangeable
6268NInterchangeable
Same NIIN cross-reference
interchangeable
574L62689-M00 VALVE V026Interchangeable
Same NIIN cross-reference
interchangeable
271-5901-958523Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 068L603/Y-544?
068L603/Y-544 is a 068L603/Y-544.
What parts can replace 068L603/Y-544?
There are 13 known substitutes for 068L603/Y-544: 271-5901-958524REV4PC19, X23425-6, 271-5901-958524 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 068L603/Y-544?
068L603/Y-544 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-3328. 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