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Technical Data Sheet
PartsTable / COMPONENT / 21303-14
21303-14 ✓ 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: ALUMINUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-449-1584, 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
21303-14
NSN: 4810-01-449-1584
FSC: 4810
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM
NSN4810-01-449-1584
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21303-14 · 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: ALUMINUM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
21303Interchangeable
interchangeable cross-reference
interchangeable
900404-8Interchangeable
interchangeable cross-reference
interchangeable
632394-1Interchangeable
interchangeable cross-reference
interchangeable
DM-2244Interchangeable
interchangeable cross-reference
interchangeable
BP1393Interchangeable
interchangeable cross-reference
interchangeable
HR-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21303-14?
21303-14 is a GUIDE,VALVE STEM.
What parts can replace 21303-14?
There are 20 known substitutes for 21303-14: 21303, 900404-8, 632394-1 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21303-14?
21303-14 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-449-1584. 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