Valve, Safety Relief4820-01-654-4490

NSN 4820-01-654-4490 · NIIN 016544490 · Part number NI/13.1-1.50 DN4STRAIGHT 25PSI

Monarch Supply Company, Inc. Dba Monarch Supply Co Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 9N735

Government record, cited

NSN 4820-01-654-4490 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-654-4490. Manufacturer of record part number: NI/13.1-1.50 DN4STRAIGHT 25PSI.

Also searched as 4820-01-654-4490 · 4820016544490 · NIIN 016544490 · 01-654-4490 · FSC 4820 Valves, Nonpowered · CAGE 9N735 · NI/13.1-1.50 DN4STRAIGHT 25PSI

Nearby stock numbers ← 4820-01-654-4432 Valve, Angle · 4820-01-654-4496 Valve, Safety Relief →

4820-01-654-4490 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Monarch Supply Company, Inc. Dba Monarch Supply Co Inc

Identification

NSN: 4820-01-654-4490
NIIN: 016544490
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: NI/13.1-1.50 DN4STRAIGHT 25PSI
Manufacturer: Monarch Supply Company, Inc. Dba Monarch Supply Co Inc

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-654-4490, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Monarch Supply Company, Inc. Dba Monarch Supply Co 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	4820-01-654-4490
Primary Part Number	NI/13.1-1.50 DN4STRAIGHT 25PSI
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Monarch Supply Company, Inc. Dba Monarch Supply Co 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
NI/13.1-1.50 DN4STRAIGHT 25PSI PRIMARY	Monarch Supply Company, Inc. Dba Monarch Supply Co 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 4820-01-654-4490?

NSN 4820-01-654-4490 is a Valve,safety Relief, manufactured by Monarch Supply Company, Inc. Dba Monarch Supply Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-654-4490?

NSN 4820-01-654-4490 has 1 manufacturer part number on file: NI/13.1-1.50 DN4STRAIGHT 25PSI (Monarch Supply Company, Inc. Dba Monarch Supply Co Inc).

What are the specifications of NI/13.1-1.50 DN4STRAIGHT 25PSI?

Key specifications for NI/13.1-1.50 DN4STRAIGHT 25PSI: Special Features: USCG 270FT WMEC B CLASS REDUCTION GEAR LUBE OIL SUPPLY REGULATION RELIEF VALVE 25PSI FT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-654-4490 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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