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Technical Data Sheet
PartsTable / COMPONENT / 9120-0590-18
9120-0590-18 ✓ 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

VALVE,LINEAR,DIRECTIONAL CONTROL. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-252-8457, 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
9120-0590-18
NSN: 4820-01-252-8457
FSC: 4820
CAGE: 63888 — MATHERS MECHANICAL LLC (USA)
SPECIFICATIONS
Part Number9120-0590-18
NSN4820-01-252-8457
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 9120-0590-18 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
11-659Interchangeable
interchangeable cross-reference
interchangeable
10086296Interchangeable
interchangeable cross-reference
interchangeable
1K6556Interchangeable
interchangeable cross-reference
interchangeable
2699-6AInterchangeable
interchangeable cross-reference
interchangeable
1174HInterchangeable
interchangeable cross-reference
interchangeable
55424Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9120-0590-18?
9120-0590-18 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What parts can replace 9120-0590-18?
There are 19 known substitutes for 9120-0590-18: 11-659, 10086296, 1K6556 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9120-0590-18?
9120-0590-18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-252-8457. 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