Seat, Valve4820-01-643-3121

NSN 4820-01-643-3121 · NIIN 016433121 · Part number 02261

Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1X5W8

Government record, cited

NSN 4820-01-643-3121 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-643-3121. Manufacturer of record part number: 02261.

Also searched as 4820-01-643-3121 · 4820016433121 · NIIN 016433121 · 01-643-3121 · FSC 4820 Valves, Nonpowered · CAGE 1X5W8 · 02261 · 8361PC2261

Nearby stock numbers ← 4820-01-643-3091 Body and Slide, Directional Contr · 4820-01-643-3143 Parts Kit, Check Valve →

4820-01-643-3121 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team

Identification

NSN: 4820-01-643-3121
NIIN: 016433121
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 02261
Manufacturer: Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-643-3121, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Seat,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team (CAGE 1X5W8)

Technical Specifications

Parameter	Value
NSN	4820-01-643-3121
Primary Part Number	02261
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team
Status	ACTIVE

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
8361PC2261	Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team (USA)
02261 PRIMARY	Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team (USA)

Frequently Asked Questions

What is NSN 4820-01-643-3121?

NSN 4820-01-643-3121 is a Seat,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-643-3121?

NSN 4820-01-643-3121 has 2 manufacturer part numbers on file: 8361PC2261 (Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team), 02261 (Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team).

Is NSN 4820-01-643-3121 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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