Valve, Regulating, System Pressure4820-01-426-0428

NSN 4820-01-426-0428 · NIIN 014260428 · Part number E131024000

Triumph Thermal Systems - Maryland, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 01359

Government record, cited

NSN 4820-01-426-0428 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-426-0428. Manufacturer of record part number: E131024000.

Also searched as 4820-01-426-0428 · 4820014260428 · NIIN 014260428 · 01-426-0428 · FSC 4820 Valves, Nonpowered · CAGE 01359 · E131024000 · 7-511A21524-1

Nearby stock numbers ← 4820-01-426-0424 Valve, Diaphragm, Stop · 4820-01-426-0520 Valve, Check →

4820-01-426-0428 — Valves, Nonpowered

Features

Valve,regulating,system Pressure — FSC 4820
End Connection Quantity: 3
Filter: NOT INCLUDED
2 manufacturer part numbers on file
Manufacturer of record: Triumph Thermal Systems - Maryland, Inc.

Identification

NSN: 4820-01-426-0428
NIIN: 014260428
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: E131024000
Manufacturer: Triumph Thermal Systems - Maryland, Inc.

General Description

The Valve,regulating,system Pressure, cataloged under National Stock Number 4820-01-426-0428, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-426-0428
Primary Part Number	E131024000
Item Name	Valve,regulating,system Pressure
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Triumph Thermal Systems - Maryland, Inc.
Status	ACTIVE
End Connection Quantity	3
Filter	NOT INCLUDED

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
7-511A21524-1	The Boeing Company (USA)
E131024000 PRIMARY	Triumph Thermal Systems - Maryland, Inc. (USA)

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 4820-01-426-0428?

NSN 4820-01-426-0428 is a Valve,regulating,system Pressure, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-426-0428?

NSN 4820-01-426-0428 has 2 manufacturer part numbers on file: 7-511A21524-1 (The Boeing Company), E131024000 (Triumph Thermal Systems - Maryland, Inc.).

What are the specifications of E131024000?

Key specifications for E131024000: End Connection Quantity: 3; End Item Identification: USED ON AH-64A A; Filter: NOT INCLUDED. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-426-0428 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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