Valve, Regulating, Fluid Pressure4820-01-374-5541

NSN 4820-01-374-5541 · NIIN 013745541 · Part number R4R03-535-11-B1

Hagglunds Drives Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1BY85

Government record, cited

NSN 4820-01-374-5541 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-374-5541. Manufacturer of record part number: R4R03-535-11-B1.

Also searched as 4820-01-374-5541 · 4820013745541 · NIIN 013745541 · 01-374-5541 · FSC 4820 Valves, Nonpowered · CAGE 1BY85 · R4R03-535-11-B1

Nearby stock numbers ← 4820-01-374-5540 Valve, Safety Relief, Remote Contr · 4820-01-374-5603 Valve, Gate →

4820-01-374-5541 — Valves, Nonpowered

Features

Valve,regulating,fluid Pressure — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Hagglunds Drives Inc

Identification

NSN: 4820-01-374-5541
NIIN: 013745541
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: R4R03-535-11-B1
Manufacturer: Hagglunds Drives Inc

General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-374-5541, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hagglunds Drives Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-374-5541
Primary Part Number	R4R03-535-11-B1
Item Name	Valve,regulating,fluid Pressure
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Hagglunds Drives 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
R4R03-535-11-B1 PRIMARY	Hagglunds Drives 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 4820-01-374-5541?

NSN 4820-01-374-5541 is a Valve,regulating,fluid Pressure, manufactured by Hagglunds Drives Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-374-5541?

NSN 4820-01-374-5541 has 1 manufacturer part number on file: R4R03-535-11-B1 (Hagglunds Drives Inc).

What are the specifications of R4R03-535-11-B1?

Key specifications for R4R03-535-11-B1: Special Features: SUBPLATE BODY;PILOT OPERATED; End Item Identification: F15E AIRCRAFT;HAGGLUNDS DENISON CORP;SERIES R4R03. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-374-5541 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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