Seat, Valve4820-01-146-7950

NSN 4820-01-146-7950 · NIIN 011467950 · Part number 2401-287 PART 17

Huntington Ingalls Inc Div Newport News Shipbuilding · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 43689

Government record, cited

NSN 4820-01-146-7950 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-146-7950. Manufacturer of record part number: 2401-287 PART 17.

Also searched as 4820-01-146-7950 · 4820011467950 · NIIN 011467950 · 01-146-7950 · FSC 4820 Valves, Nonpowered · CAGE 43689 · 2401-287 PART 17 · 2401-287 · 506-4402154 · 506-4402154 PART 17

Nearby stock numbers ← 4820-01-146-7949 Clamp, Test · 4820-01-146-7951 Stem, Fluid Valve →

4820-01-146-7950 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Huntington Ingalls Inc Div Newport News Shipbuilding

Identification

NSN: 4820-01-146-7950
NIIN: 011467950
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2401-287 PART 17
Manufacturer: Huntington Ingalls Inc Div Newport News Shipbuilding

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-146-7950, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Seat,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Huntington Ingalls Inc Div Newport News Shipbuilding (CAGE 43689)

Technical Specifications

Parameter	Value
NSN	4820-01-146-7950
Primary Part Number	2401-287 PART 17
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Huntington Ingalls Inc Div Newport News Shipbuilding
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
2401-287 PART 17	Huntington Ingalls Inc Div Newport News Shipbuilding (USA)

Reference documents

Reference	Meaning
2401-287	D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding
506-4402154	D/9 Drawing number reference only U.S. Government activity
506-4402154 PART 17	3/2 Design control — primary reference U.S. Government activity

Frequently Asked Questions

What is NSN 4820-01-146-7950?

NSN 4820-01-146-7950 is a Seat,valve, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-146-7950?

NSN 4820-01-146-7950 has 1 manufacturer part number on file: 2401-287 PART 17 (Huntington Ingalls Inc Div Newport News Shipbuilding).

Is NSN 4820-01-146-7950 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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