PartsTable TECHNICAL DATA SHEET

NSN 4820-01-256-3452Government record, cited

Valve, Pressure Reli4820-01-256-3452

NSN 4820-01-256-3452 · NIIN 012563452 · Part number 000N05525/1

Rolls-Royce Solutions Gmbh · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE D8266

Government record, cited

NSN 4820-01-256-3452 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-256-3452. Manufacturer of record part number: 000N05525/1.

Also searched as 4820-01-256-3452 · 4820012563452 · NIIN 012563452 · 01-256-3452 · FSC 4820 Valves, Nonpowered · CAGE D8266 · 000N05525/1

Nearby stock numbers ← 4820-01-256-3449 Valve, Flow Control · 4820-01-256-3511 Valve, Gate →

4820-01-256-3452 — Valves, Nonpowered

Features

Valve,pressure Reli — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Rolls-Royce Solutions Gmbh

Identification

NSN: 4820-01-256-3452
NIIN: 012563452
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 000N05525/1
Manufacturer: Rolls-Royce Solutions Gmbh

General Description

The Valve,pressure Reli, cataloged under National Stock Number 4820-01-256-3452, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rolls-Royce Solutions Gmbh. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,pressure Reli
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Rolls-Royce Solutions Gmbh (CAGE D8266)

Technical Specifications

Parameter	Value
NSN	4820-01-256-3452
Primary Part Number	000N05525/1
Item Name	Valve,pressure Reli
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Rolls-Royce Solutions Gmbh
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
000N05525/1	Rolls-Royce Solutions Gmbh (DEU)

Reference documents

Reference	Meaning
000N05525/1	3/9 Design control — primary reference Detroit Diesel Corporation

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 4820-01-256-3452?

NSN 4820-01-256-3452 is a Valve,pressure Reli, manufactured by Rolls-Royce Solutions Gmbh, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-256-3452?

NSN 4820-01-256-3452 has 1 manufacturer part number on file: 000N05525/1 (Rolls-Royce Solutions Gmbh).

Is NSN 4820-01-256-3452 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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