Valve, Safety Relief4820-01-251-3971

NSN 4820-01-251-3971 · NIIN 012513971 · Part number L8535061

Honeywell International Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 63389

Government record, cited

NSN 4820-01-251-3971 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-251-3971. Manufacturer of record part number: L8535061.

Also searched as 4820-01-251-3971 · 4820012513971 · NIIN 012513971 · 01-251-3971 · FSC 4820 Valves, Nonpowered · CAGE 63389 · L8535061

Nearby stock numbers ← 4820-01-251-3570 Valve Assembly, Pilot · 4820-01-251-4039 Seat, Valve →

4820-01-251-3971 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Honeywell International Inc.

Identification

NSN: 4820-01-251-3971
NIIN: 012513971
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: L8535061
Manufacturer: Honeywell International Inc.

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-251-3971, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell International 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	Honeywell International Inc. (CAGE 63389)

Technical Specifications

Parameter	Value
NSN	4820-01-251-3971
Primary Part Number	L8535061
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Honeywell International 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
L8535061 PRIMARY	Honeywell International 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 4820-01-251-3971?

NSN 4820-01-251-3971 is a Valve,safety Relief, manufactured by Honeywell International Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-251-3971?

NSN 4820-01-251-3971 has 1 manufacturer part number on file: L8535061 (Honeywell International Inc.).

Is NSN 4820-01-251-3971 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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