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Technical Data Sheet
PartsTable / COMPONENT / 17390/FLNS-5D 21978N/A 3IN.
17390/FLNS-5D 21978N/A 3IN. ✓ 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 17390/FLNS-5D 21978N/A 3IN. 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 4820-01-149-3115, 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
17390/FLNS-5D 21978N/A 3IN.
NSN: 4820-01-149-3115
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
Part Number17390/FLNS-5D 21978N/A 3IN.
NSN4820-01-149-3115
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 17390/FLNS-5D 21978N/A 3IN. · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
MATERIAL: STEEL UNS J03002 BODY
•
FIRST END FLANGE THICKNESS: 0.875 INCHES NOMINAL IN
•
REGULATION TYPE: AUTOMATIC SINGLE STAGE
•
FIRST END CONNECTION TYPE: RAISED FACE FLANGE
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END CONNECTION QUANTITY: 2
•
FIRST END FLANGE OUTSIDE DIAMETER: 9.000 INCHES NOMINAL IN
•
FIRST END RAISED FACE HEIGHT: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
MATERIALSTEEL UNS J03002 BODY
FIRST END FLANGE THICKNESS0.875 INCHES NOMINAL IN
REGULATION TYPEAUTOMATIC SINGLE STAGE
FIRST END CONNECTION TYPERAISED FACE FLANGE
END CONNECTION QUANTITY2
FIRST END FLANGE OUTSIDE DIAMETER9.000 INCHES NOMINAL IN
FIRST END RAISED FACE HEIGHT0.062 INCHES NOMINAL IN
FIRST END BOLT HOLE DIAMETER0.750 INCHES NOMINAL IN
FLOW CONTROL DEVICESTEM AND INTEGRAL DISK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
17390Interchangeable
interchangeable cross-reference
interchangeable
9433884Interchangeable
interchangeable cross-reference
interchangeable
17395Interchangeable
interchangeable cross-reference
interchangeable
88417395Interchangeable
interchangeable cross-reference
interchangeable
LNS5Interchangeable
interchangeable cross-reference
interchangeable
LNS5L1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 17390/FLNS-5D 21978N/A 3IN.?
17390/FLNS-5D 21978N/A 3IN. is a 17390/FLNS-5D 21978N/A 3IN..
What parts can replace 17390/FLNS-5D 21978N/A 3IN.?
There are 21 known substitutes for 17390/FLNS-5D 21978N/A 3IN.: 17390, 9433884, 17395 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 17390/FLNS-5D 21978N/A 3IN.?
17390/FLNS-5D 21978N/A 3IN. is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-149-3115. 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