Seat, Valve4820-01-283-8405

NSN 4820-01-283-8405 · NIIN 012838405 · Part number LHD8435 2IN. PIECE 2

William E Williams Valve Corp · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 79342

Government record, cited

NSN 4820-01-283-8405 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-283-8405. Manufacturer of record part number: LHD8435 2IN. PIECE 2.

Also searched as 4820-01-283-8405 · 4820012838405 · NIIN 012838405 · 01-283-8405 · FSC 4820 Valves, Nonpowered · CAGE 79342 · LHD8435 2IN. PIECE 2 · LHD8435

Nearby stock numbers ← 4820-01-283-8404 · 4820-01-283-8406 →

4820-01-283-8405 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: STEEL UNS J03002 SEAT
1 manufacturer part number on file
Manufacturer of record: William E Williams Valve Corp

Identification

NSN: 4820-01-283-8405
NIIN: 012838405
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: LHD8435 2IN. PIECE 2
Manufacturer: William E Williams Valve Corp

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-283-8405, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William E Williams Valve Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-283-8405
Primary Part Number	LHD8435 2IN. PIECE 2
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	William E Williams Valve Corp
Status	ACTIVE
Material	STEEL UNS J03002 SEAT

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
LHD8435 2IN. PIECE 2 PRIMARY	William E Williams Valve Corp (USA)

Reference documents

Reference	Meaning
LHD8435	D/9 Drawing number reference only William E Williams Valve Corp

Frequently Asked Questions

What is NSN 4820-01-283-8405?

NSN 4820-01-283-8405 is a Seat,valve, manufactured by William E Williams Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-283-8405?

NSN 4820-01-283-8405 has 1 manufacturer part number on file: LHD8435 2IN. PIECE 2 (William E Williams Valve Corp).

What are the specifications of LHD8435 2IN. PIECE 2?

Key specifications for LHD8435 2IN. PIECE 2: Special Features: WITH STELLITE OVERLAY; Material: STEEL UNS J03002 SEAT. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-283-8405 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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