Valve, Safety Relief4820-01-330-9426

NSN 4820-01-330-9426 · NIIN 013309426 · Part number UU-1551T

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

Government record, cited

NSN 4820-01-330-9426 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-330-9426. Manufacturer of record part number: UU-1551T.

Also searched as 4820-01-330-9426 · 4820013309426 · NIIN 013309426 · 01-330-9426 · FSC 4820 Valves, Nonpowered · CAGE 9N735 · UU-1551T

Nearby stock numbers ← 4820-01-330-9425 Valve, Safety Relief · 4820-01-330-9427 Valve, Safety Relief →

4820-01-330-9426 — 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: 4820-01-330-9426
NIIN: 013309426
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: UU-1551T
Manufacturer: Monarch Supply Company, Inc. Dba Monarch Supply Co Inc

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-330-9426, 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-330-9426
Primary Part Number	UU-1551T
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

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4820-01-350-1558UU1551T3-4IN 150 POSSIBLE MATCH

VALVE,SAFETY RELIEF

Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team

Cross-Reference Index

Part Number	Manufacturer
UU-1551T PRIMARY	Monarch Supply Company, Inc. Dba Monarch Supply Co Inc (USA)

Related Parts

4820-01-350-1558POSSIBLE MATCH

VALVE,SAFETY RELIEF

UU1551T3-4IN 150

Frequently Asked Questions

What is NSN 4820-01-330-9426?

NSN 4820-01-330-9426 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 4820-01-330-9426?

NSN 4820-01-330-9426 has 1 manufacturer part number on file: UU-1551T (Monarch Supply Company, Inc. Dba Monarch Supply Co Inc).

What NSN replaces 4820-01-330-9426?

1 possible match (shared part number, not a government interchangeability claim): 4820-01-350-1558. Verify interchangeability with system specifications before substitution.

What are the specifications of UU-1551T?

Key specifications for UU-1551T: End Item Identification: MOGAS FUEL SYSTEM. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-330-9426 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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