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20543 — SEMICONDUCTOR DEVICE,DIODE

✓ Government record, cited
Legrand · GATE VALVE
PRODUCT OVERVIEW

20543: SEMICONDUCTOR DEVICE,DIODE.

The SEMICONDUCTOR DEVICE,DIODE is a Legrand industrial component. Key specifications include special_features: END ITEM M1 TANK. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-468-0163, 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
20543
NSN: 4820-00-468-0163
NIINs: 004680163, 004949388, 012295509, 013406853, 013919506
FSC: 4820 — Valves, Nonpowered
CAGE: 27235 — HARDIE-TYNES CO., INC. (USA)
SPECIFICATIONS
special_featuresEND ITEM M1 TANK
NSN4820-00-468-0163
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20543 · Legrand ⚠ 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: COPPER ALLOY; 3.220 IN. O/A LG; WRENCHING SURFACE ACROSS FLATS 0.875 IN. 1.000 IN. OD; CYLINDRICAL SURFACE HAS 4 0.250 IN. HOLES EQUALLY SPACED ON PERIPHERY IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCOPPER ALLOY; 3.220 IN. O/A LG; WRENCHING SURFACE ACROSS FLATS 0.875 IN. 1.000 IN. OD; CYLINDRICAL SURFACE HAS 4 0.250 IN. HOLES EQUALLY SPACED ON PERIPHERY IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20543?
20543 is a SEMICONDUCTOR DEVICE,DIODE manufactured by Legrand.
What is the NSN for 20543?
20543 is cataloged in the U.S. Government catalog under NSN 4820-00-468-0163. 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.