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420240 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

420240: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include special_features: E/I PRESSURE VALVE, end_item_identification: WSC KAN USNS STALWART CLASS TAGOS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-461-3376, 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
420240
NSN: 4820-01-461-3376
FSC: 4820 — Valves, Nonpowered
CAGE: 03670 — TYCO FIRE PRODUCTS LP (USA)
SPECIFICATIONS
special_featuresE/I PRESSURE VALVE
end_item_identificationWSC KAN USNS STALWART CLASS TAGOS
NSN4820-01-461-3376
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 420240 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESE/I PRESSURE VALVE
END ITEM IDENTIFICATIONWSC KAN USNS STALWART CLASS TAGOS
SUBSTITUTES & CROSS-REFERENCES 1
420094Reference 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 420240?
420240 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 420240?
There is 1 known substitute for 420240: 420094. Substitute compatibility should be verified for your specific system.
What is the NSN for 420240?
420240 is cataloged in the U.S. Government catalog under NSN 4820-01-461-3376. 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.