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LHD 8405 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

LHD 8405: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, style_designator: POPPET, features_provided: RISING STEM, stem_actuating_end_type: THREADED EXTERNALLY, valve_size_for_which_designed: 5.000 INCHES IN, valve_type_for_which_designed: GATE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-259-5857, 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
LHD 8405
NSN: 4820-01-259-5857
NIINs: 012595857, 012598196, 012616595
FSC: 4820 — Valves, Nonpowered
CAGE: 79342 — WILLIAM E WILLIAMS VALVE CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
style_designatorPOPPET
features_providedRISING STEM
stem_actuating_end_typeTHREADED EXTERNALLY
valve_size_for_which_designed5.000 INCHES IN
valve_type_for_which_designedGATE
material_document_and_classificationASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
NSN4820-01-259-5857
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: LHD 8405 · 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
•
VALVE TYPE FOR WHICH DESIGNED: GATE
•
STEM ACTUATING END TYPE: THREADED EXTERNALLY
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
•
FEATURES PROVIDED: RISING STEM
•
VALVE SIZE FOR WHICH DESIGNED: 5.000 INCHES IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDGATE
STEM ACTUATING END TYPETHREADED EXTERNALLY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
FEATURES PROVIDEDRISING STEM
VALVE SIZE FOR WHICH DESIGNED5.000 INCHES IN
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 1
LHD8405 ITEM 5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is LHD 8405?
LHD 8405 is a SEAT,VALVE.
What parts can replace LHD 8405?
There is 1 known substitute for LHD 8405: LHD8405 ITEM 5. Substitute compatibility should be verified for your specific system.
What is the NSN for LHD 8405?
LHD 8405 is cataloged in the U.S. Government catalog under NSN 4820-01-259-5857. 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.