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PartsTable / COMPONENT / CYLB51643
CYLB51643 ✓ 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 VALVE,CHECK is a the manufacturer industrial component. Key specifications include flange_shape: ROUND FIRST END, connection_type: FLANGE SECOND END, special_features: INLET FLANGE EQUIVALENT TO GD/FW C7880-200F,CAGEC 81755; OUTLET FLANGE EQUIVALENT TO GD/FW C7880-200M,CAGEC 81755, style_designator: STRAIGHT THRU, operating_pressure: 90.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 1189.0 FAHRENHEIT SINGLE RESPONSE DEGF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-338-3547, 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
CYLB51643
NSN: 4820-01-338-3547
FSC: 4820
CAGE: 05624 — GE AVIATION SYSTEMS LLC DBA GE AVIATION SYSTEMS LLC (USA)
SPECIFICATIONS
flange_shapeROUND FIRST END
connection_typeFLANGE SECOND END
special_featuresINLET FLANGE EQUIVALENT TO GD/FW C7880-200F,CAGEC 81755; OUTLET FLANGE EQUIVALENT TO GD/FW C7880-200M,CAGEC 81755
style_designatorSTRAIGHT THRU
operating_pressure90.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp1189.0 FAHRENHEIT SINGLE RESPONSE DEGF
end_item_identificationACFT,TYPE F-16A,B,C,D A
media_for_which_designedAIR SINGLE RESPONSE
NSN4820-01-338-3547
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: CYLB51643 · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONACFT,TYPE F-16A,B,C,D A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
CYLB51643Interchangeable
interchangeable cross-reference
interchangeable
4201-2Interchangeable
interchangeable cross-reference
interchangeable
VS2300-130Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CYLB51643?
CYLB51643 is a VALVE,CHECK.
What parts can replace CYLB51643?
There are 3 known substitutes for CYLB51643: CYLB51643, 4201-2, VS2300-130. Substitute compatibility should be verified for your specific system.
What is the NSN for CYLB51643?
CYLB51643 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-338-3547. 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