PartsTable TECHNICAL DATA SHEET

NSN 4820-01-450-5269Government record, cited

Regulator Assembly4820-01-450-5269

NSN 4820-01-450-5269 · NIIN 014505269 · Part number MR12580G

Grove Valve Operations · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 26505

Government record, cited

NSN 4820-01-450-5269 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-450-5269. Manufacturer of record part number: MR12580G.

Also searched as 4820-01-450-5269 · 4820014505269 · NIIN 014505269 · 01-450-5269 · FSC 4820 Valves, Nonpowered · CAGE 26505 · MR12580G · 6924792-1

Nearby stock numbers ← 4820-01-450-5265 Valve, Relief, Pressure and Temper · 4820-01-450-5270 Valve, Relief, Pressure and Temper →

4820-01-450-5269 — Valves, Nonpowered

Features

Regulator Assembly — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Grove Valve Operations

Identification

NSN: 4820-01-450-5269
NIIN: 014505269
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: MR12580G
Manufacturer: Grove Valve Operations

General Description

The Regulator Assembly, cataloged under National Stock Number 4820-01-450-5269, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Grove Valve Operations. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.

Technical Specifications

Parameter	Value
NSN	4820-01-450-5269
Primary Part Number	MR12580G
Item Name	Regulator Assembly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Grove Valve Operations
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
MR12580G PRIMARY	Grove Valve Operations (USA)

Reference documents

Reference	Meaning
6924792-1	5/9 Secondary reference U.S. Government activity
MR12580G	5/2 Secondary reference U.S. Government activity

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 4820-01-450-5269?

NSN 4820-01-450-5269 is a Regulator Assembly, manufactured by Grove Valve Operations, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-450-5269?

NSN 4820-01-450-5269 has 1 manufacturer part number on file: MR12580G (Grove Valve Operations).

What are the specifications of MR12580G?

Key specifications for MR12580G: End Item Identification: TOMAHAWK GUIDED MISSILE. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-450-5269 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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