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20433-420 — VALVE,RESTRICTOR CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20433-420: VALVE,RESTRICTOR CHECK.

The VALVE,RESTRICTOR CHECK is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-104-7560, 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
20433-420
NSN: 4820-01-104-7560
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
Part Number20433-420
NSN4820-01-104-7560
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20433-420 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: ALUMINUM;ANODIZED FINISH,EXTERNALLY THD ONE END 0.875-14 UNF THD;INTERNALLY THD SAME END 0.313-24 UNF;2.900 IN.O/A LG;1.675 IN.DIA;FLANGE MTD,2.750 IN.LG,2.125 IN.W,0.545 IN.FLANGE THK,4 BOLT HOLES IN EACH CORNER 0.344 IN.DIA IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONALUMINUM;ANODIZED FINISH,EXTERNALLY THD ONE END 0.875-14 UNF THD;INTERNALLY THD SAME END 0.313-24 UNF;2.900 IN.O/A LG;1.675 IN.DIA;FLANGE MTD,2.750 IN.LG,2.125 IN.W,0.545 IN.FLANGE THK,4 BOLT HOLES IN EACH CORNER 0.344 IN.DIA IN
SUBSTITUTES & CROSS-REFERENCES 2
20433-001 FIND 3Reference document
Same NSN cross-reference
Reference document — Secondary reference
20433-001Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 20433-420?
20433-420 is a VALVE,RESTRICTOR CHECK.
What parts can replace 20433-420?
There are 2 known substitutes for 20433-420: 20433-001 FIND 3, 20433-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 20433-420?
20433-420 is cataloged in the U.S. Government catalog under NSN 4820-01-104-7560. 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.