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204-200-640-000 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

204-200-640-000: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 713.0, pressure_rating: 15.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, outside_diameter: 20.000 INCHES NOMINAL IN, style_designator: BUTTERFLY, material_document_and_classification: ASTM B26, ALLOY 713.0, ZC81A ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-118-8571, 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
204-200-640-000
NSN: 4820-01-118-8571
FSC: 4820 — Valves, Nonpowered
CAGE: 04613 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 713.0
pressure_rating15.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
outside_diameter20.000 INCHES NOMINAL IN
style_designatorBUTTERFLY
material_document_and_classificationASTM B26, ALLOY 713.0, ZC81A ASSN STD SINGLE MATERIAL RESPONSE
NSN4820-01-118-8571
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 204-200-640-000 · 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
•
PRESSURE RATING: 15.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
OUTSIDE DIAMETER: 20.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BUTTERFLY
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B26, ALLOY 713.0, ZC81A ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: ALUMINUM ALLOY 713.0
TECHNICAL CHARACTERISTICS
PRESSURE RATING15.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
OUTSIDE DIAMETER20.000 INCHES NOMINAL IN
STYLE DESIGNATORBUTTERFLY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B26, ALLOY 713.0, ZC81A ASSN STD SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 713.0
SUBSTITUTES & CROSS-REFERENCES 2
39-2-1Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
39-2-1 ITEM 2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 204-200-640-000?
204-200-640-000 is a DISK,VALVE.
What parts can replace 204-200-640-000?
There are 2 known substitutes for 204-200-640-000: 39-2-1, 39-2-1 ITEM 2. Substitute compatibility should be verified for your specific system.
What is the NSN for 204-200-640-000?
204-200-640-000 is cataloged in the U.S. Government catalog under NSN 4820-01-118-8571. 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.