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KU1731 ✓ 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 DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, overall_height: 1.350 INCHES NOMINAL IN, shank_diameter: 0.250 INCHES NOMINAL IN, flange_diameter: 0.350 INCHES NOMINAL IN, style_designator: POPPET. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-118-4030, 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
KU1731
NSN: 4820-01-118-4030
FSC: 4820
CAGE: 5Z471 — ZAMON CO INC THE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
overall_height1.350 INCHES NOMINAL IN
shank_diameter0.250 INCHES NOMINAL IN
flange_diameter0.350 INCHES NOMINAL IN
style_designatorPOPPET
NSN4820-01-118-4030
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: KU1731 · 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
•
FLANGE DIAMETER: 0.350 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
•
SHANK DIAMETER: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: POPPET
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT1.350 INCHES NOMINAL IN
FLANGE DIAMETER0.350 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
SHANK DIAMETER0.250 INCHES NOMINAL IN
STYLE DESIGNATORPOPPET
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
37-2ZInterchangeable
interchangeable cross-reference
interchangeable
9433FFInterchangeable
interchangeable cross-reference
interchangeable
061-4Interchangeable
interchangeable cross-reference
interchangeable
150-619FFPC232Interchangeable
interchangeable cross-reference
interchangeable
150-406YPC232Interchangeable
interchangeable cross-reference
interchangeable
20-232Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KU1731?
KU1731 is a DISK,VALVE.
What parts can replace KU1731?
There are 25 known substitutes for KU1731: 37-2Z, 9433FF, 061-4 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for KU1731?
KU1731 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-118-4030. 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