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N781PC18 ✓ 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 GUIDE,VALVE STEM is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, outside_diameter: 1.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-767-6503, 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
N781PC18
NSN: 4820-00-767-6503
FSC: 4820
CAGE: 26505 — GROVE VALVE OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
outside_diameter1.000 INCHES NOMINAL IN
NSN4820-00-767-6503
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N781PC18 · 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
•
OUTSIDE DIAMETER: 1.000 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.000 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
T264-9AInterchangeable
interchangeable cross-reference
interchangeable
231581Interchangeable
interchangeable cross-reference
interchangeable
5491Interchangeable
interchangeable cross-reference
interchangeable
15DInterchangeable
interchangeable cross-reference
interchangeable
N-781Interchangeable
interchangeable cross-reference
interchangeable
107R3562-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N781PC18?
N781PC18 is a GUIDE,VALVE STEM.
What parts can replace N781PC18?
There are 10 known substitutes for N781PC18: T264-9A, 231581, 5491 and 7 more. Substitute compatibility should be verified for your specific system.
Is N781PC18 still available?
N781PC18 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026