Stem, Fluid Valve4820-01-425-9561

NSN 4820-01-425-9561 · NIIN 014259561

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-425-9561 · 4820014259561 · NIIN 014259561 · 01-425-9561 · FSC 4820 Valves, Nonpowered · 23-451-00 ITEM 12 · 23-451-00 · G-3371-06

Nearby stock numbers ← 4820-01-425-9550 Valve, Calibrated Flow · 4820-01-425-9563 Cap, Valve →

4820-01-425-9561 — Valves, Nonpowered

Features

Stem,fluid Valve — FSC 4820
Valve Type for Which Designed: CROSS
Stem Actuating End Type: SOCKET
Valve Model Number for Which Designed: 23-451-00
Criticality Code Justification: ZZZY
Features Provided: THREADED
Valve Size for Which Designed: 0.500 INCHES IN
Material: STEEL COMP 316

Identification

NSN: 4820-01-425-9561
NIIN: 014259561
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-425-9561, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-425-9561
Item Name	Stem,fluid Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Valve Type for Which Designed	CROSS
Stem Actuating End Type	SOCKET
Valve Model Number for Which Designed	23-451-00
Criticality Code Justification	ZZZY
Features Provided	THREADED
Valve Size for Which Designed	0.500 INCHES IN
Material	STEEL COMP 316
Reference Number Differentiating Characteristics	TO BE FREE OF MERCURY CONTAMINATION

Lifecycle & Compliance

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

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
23-451-00 ITEM 12	5/1 Secondary reference Aalberts Integrated Piping Systems Americas, Inc.
23-451-00	5/1 Secondary reference Aalberts Integrated Piping Systems Americas, Inc.
G-3371-06	3/1 Design control — primary reference Aalberts Integrated Piping Systems Americas, Inc.

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 4820-01-425-9561?

NSN 4820-01-425-9561 is a Stem,fluid Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-425-9561?

Key specifications for 4820-01-425-9561: Valve Type for Which Designed: CROSS; Stem Actuating End Type: SOCKET; Valve Model Number for Which Designed: 23-451-00; Criticality Code Justification: ZZZY. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-425-9561 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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