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LHD8423 PC 4 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

LHD8423 PC 4: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OVERALL, special_features: SEAT STAINLSS STEEL WITH STELLITE OVERLAY. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-273-0359, 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
LHD8423 PC 4
NSN: 4820-01-273-0359
FSC: 4820 — Valves, Nonpowered
CAGE: 79342 — WILLIAM E WILLIAMS VALVE CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
special_featuresSEAT STAINLSS STEEL WITH STELLITE OVERLAY
NSN4820-01-273-0359
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: LHD8423 PC 4 · 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: STEEL COMP 410 OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESSEAT STAINLSS STEEL WITH STELLITE OVERLAY
MATERIALSTEEL COMP 410 OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
LHD8423Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
F158D-1.5-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 LHD8423 PC 4?
LHD8423 PC 4 is a SEAT,VALVE.
What parts can replace LHD8423 PC 4?
There are 2 known substitutes for LHD8423 PC 4: LHD8423, F158D-1.5-4. Substitute compatibility should be verified for your specific system.
What is the NSN for LHD8423 PC 4?
LHD8423 PC 4 is cataloged in the U.S. Government catalog under NSN 4820-01-273-0359. 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.