Valve, Safety Relief4820-01-437-4158

NSN 4820-01-437-4158 · NIIN 014374158 · Part number B-51343-3

Mirada Research & Manufacturing, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 08407

Government record, cited

NSN 4820-01-437-4158 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-437-4158. Manufacturer of record part number: B-51343-3.

Also searched as 4820-01-437-4158 · 4820014374158 · NIIN 014374158 · 01-437-4158 · FSC 4820 Valves, Nonpowered · CAGE 08407 · B-51343-3

Nearby stock numbers ← 4820-01-437-4110 Valve, Check · 4820-01-437-4204 Valve, Safety Relief →

4820-01-437-4158 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Mirada Research & Manufacturing, Inc.

Identification

NSN: 4820-01-437-4158
NIIN: 014374158
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: B-51343-3
Manufacturer: Mirada Research & Manufacturing, Inc.

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-437-4158, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mirada Research & Manufacturing, 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.

Catalog Facts

Item Name	Valve,safety Relief
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Mirada Research & Manufacturing, Inc. (CAGE 08407)

Technical Specifications

Parameter	Value
NSN	4820-01-437-4158
Primary Part Number	B-51343-3
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Mirada Research & Manufacturing, 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)

Cross-Reference Index

Part Number	Manufacturer
B-51343-3 PRIMARY	Mirada Research & Manufacturing, 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 4820-01-437-4158?

NSN 4820-01-437-4158 is a Valve,safety Relief, manufactured by Mirada Research & Manufacturing, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-437-4158?

NSN 4820-01-437-4158 has 1 manufacturer part number on file: B-51343-3 (Mirada Research & Manufacturing, Inc.).

Is NSN 4820-01-437-4158 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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