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Technical Data Sheet
PartsTable / COMPONENT / D-89351
D-89351 ✓ 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 CARTRIDGE,SAFETY RELIEF VALVE 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 4820-01-117-3254, 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
D-89351
NSN: 4820-01-117-3254
FSC: 4820
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL 0/A,SPRING LOADED POPPET,3000.0 PSI OPERATING PRESSUE RATING,1800.0 PSI SET PRESSURE,1.000-14UNS EXTERNAL BOSS MTG THD,4.330 IN. O/A LG IN
NSN4820-01-117-3254
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D-89351 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL 0/A,SPRING LOADED POPPET,3000.0 PSI OPERATING PRESSUE RATING,1800.0 PSI SET PRESSURE,1.000-14UNS EXTERNAL BOSS MTG THD,4.330 IN. O/A LG IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL 0/A,SPRING LOADED POPPET,3000.0 PSI OPERATING PRESSUE RATING,1800.0 PSI SET PRESSURE,1.000-14UNS EXTERNAL BOSS MTG THD,4.330 IN. O/A LG IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
89-351Interchangeable
interchangeable cross-reference
interchangeable
5638111Interchangeable
interchangeable cross-reference
interchangeable
4217301Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D-89351?
D-89351 is a CARTRIDGE,SAFETY RELIEF VALVE.
What parts can replace D-89351?
There are 3 known substitutes for D-89351: 89-351, 5638111, 4217301. Substitute compatibility should be verified for your specific system.
What is the NSN for D-89351?
D-89351 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-117-3254. 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