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N50659 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 922 BODY, body_style: PLAIN, SOLID, body_width: 4.431 INCHES NOMINAL IN, bore_style: W/COUNTERBORE BOTH ENDS, tooth_form: STANDARD, body_height: 0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-091-2651, 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
N50659
NSN: 4820-01-091-2651
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922 BODY
body_stylePLAIN, SOLID
body_width4.431 INCHES NOMINAL IN
bore_styleW/COUNTERBORE BOTH ENDS
tooth_formSTANDARD
body_height0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
body_length9.120 INCHES NOMINAL IN
bonnet_typeINSIDE SCREW
inclosure_typeFULLY INCLOSED
pitch_diameter1.1667 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity14
NSN4820-01-091-2651
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N50659 · 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 10
0-110Interchangeable
interchangeable cross-reference
interchangeable
79-1/4Interchangeable
interchangeable cross-reference
interchangeable
1B415-114Interchangeable
interchangeable cross-reference
interchangeable
50659Interchangeable
interchangeable cross-reference
interchangeable
16308Interchangeable
interchangeable cross-reference
interchangeable
163058Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N50659?
N50659 is a SEAT,VALVE.
What parts can replace N50659?
There are 10 known substitutes for N50659: 0-110, 79-1/4, 1B415-114 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N50659?
N50659 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-091-2651. 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