PartsTable TECHNICAL DATA SHEET

NSN 4820-00-399-4459Government record, cited

Valve Assembly4820-00-399-4459

NSN 4820-00-399-4459 · NIIN 003994459 · Part number 1505658

Westinghouse Electric Corp · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 79500

Government record, cited

NSN 4820-00-399-4459 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-399-4459. Manufacturer of record part number: 1505658.

Also searched as 4820-00-399-4459 · 4820003994459 · NIIN 003994459 · 00-399-4459 · FSC 4820 Valves, Nonpowered · CAGE 79500 · 1505658

Nearby stock numbers ← 4820-00-399-4458 Valve Assembly · 4820-00-399-4460 Seat, Valve →

4820-00-399-4459 — Valves, Nonpowered

Features

Valve Assembly — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Westinghouse Electric Corp

Identification

NSN: 4820-00-399-4459
NIIN: 003994459
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1505658
Manufacturer: Westinghouse Electric Corp

General Description

The Valve Assembly, cataloged under National Stock Number 4820-00-399-4459, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Westinghouse Electric Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Valve Assembly
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Westinghouse Electric Corp (CAGE 79500)

Technical Specifications

Parameter	Value
NSN	4820-00-399-4459
Primary Part Number	1505658
Item Name	Valve Assembly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Westinghouse Electric Corp
Status	ACTIVE

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
1505658 PRIMARY	Westinghouse Electric Corp (USA)

Reference documents

Reference	Meaning
1505658	3/2 Design control — primary reference U.S. Government activity
1505658	5/9 Secondary reference Westinghouse Electric Corp Control Business Unit

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-00-399-4459?

NSN 4820-00-399-4459 is a Valve Assembly, manufactured by Westinghouse Electric Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-00-399-4459?

NSN 4820-00-399-4459 has 1 manufacturer part number on file: 1505658 (Westinghouse Electric Corp).

Is NSN 4820-00-399-4459 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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