PartsTable TECHNICAL DATA SHEET

NSN 4820-01-657-2359Government record, cited

Valve, Bleeder, Hydraulic System4820-01-657-2359

NSN 4820-01-657-2359 · NIIN 016572359 · Part number H23424-A10

Alstom Power Conversion Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 04EK4

Government record, cited

NSN 4820-01-657-2359 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-657-2359. Manufacturer of record part number: H23424-A10.

Also searched as 4820-01-657-2359 · 4820016572359 · NIIN 016572359 · 01-657-2359 · FSC 4820 Valves, Nonpowered · CAGE 04EK4 · H23424-A10 · NRP4/H23424-A10 · MMAG-1R2272 · MMAG-1R2272 TABLE 2 ITEM 5

Nearby stock numbers ← 4820-01-657-2355 Valve, Safety Relief · 4820-01-657-2365 Valve, Regulating, System Pressure →

4820-01-657-2359 — Valves, Nonpowered

Features

Valve,bleeder,hydraulic System — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Alstom Power Conversion Inc.

Identification

NSN: 4820-01-657-2359
NIIN: 016572359
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: H23424-A10
Manufacturer: Alstom Power Conversion Inc.

General Description

The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-657-2359, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Alstom Power Conversion Inc.. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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,bleeder,hydraulic System
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Alstom Power Conversion Inc. (CAGE 04EK4)

Technical Specifications

Parameter	Value
NSN	4820-01-657-2359
Primary Part Number	H23424-A10
Item Name	Valve,bleeder,hydraulic System
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Alstom Power Conversion Inc.
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
H23424-A10 PRIMARY	Alstom Power Conversion Inc. (USA)
NRP4/H23424-A10	Alstom Power Conversion Inc. (USA)

Reference documents

Reference	Meaning
MMAG-1R2272	D/9 Drawing number reference only Ge Energy Power Conversion Usa Inc.
MMAG-1R2272 TABLE 2 ITEM 5	C/1 Advisory reference — outside the item-of-supply concept Ge Energy Power Conversion Usa 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 4820-01-657-2359?

NSN 4820-01-657-2359 is a Valve,bleeder,hydraulic System, manufactured by Alstom Power Conversion Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-657-2359?

NSN 4820-01-657-2359 has 2 manufacturer part numbers on file: H23424-A10 (Alstom Power Conversion Inc.), NRP4/H23424-A10 (Alstom Power Conversion Inc.).

Is NSN 4820-01-657-2359 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.

PartsTable Design LLC · partstable.com