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502171200210C4B — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

502171200210C4B: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: CHROMIUM ALLOY, overall_length: 1.719 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-956-8462, 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
502171200210C4B
NSN: 4820-00-956-8462
FSC: 4820 — Valves, Nonpowered
CAGE: 16626 — CIRCOR INTL INC (USA)
SPECIFICATIONS
materialCHROMIUM ALLOY
overall_length1.719 INCHES NOMINAL IN
NSN4820-00-956-8462
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 502171200210C4B · 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: CHROMIUM ALLOY
TECHNICAL CHARACTERISTICS
OVERALL LENGTH1.719 INCHES NOMINAL IN
MATERIALCHROMIUM ALLOY
SUBSTITUTES & CROSS-REFERENCES 5
502-17-12-0021-OC4BReference document
Same NSN cross-reference
Reference document — Secondary reference
502-17-12-0021-Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
217-12-01Reference document
Same NSN cross-reference
Reference document — Secondary reference
090258Reference document
Same NSN cross-reference
Reference document — Secondary reference
803-5001003-M4XReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 502171200210C4B?
502171200210C4B is a STEM,FLUID VALVE.
What parts can replace 502171200210C4B?
There are 5 known substitutes for 502171200210C4B: 502-17-12-0021-OC4B, 502-17-12-0021-, 217-12-01 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 502171200210C4B?
502171200210C4B is cataloged in the U.S. Government catalog under NSN 4820-00-956-8462. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.