Valve, Safety Relief4820-01-420-8541

NSN 4820-01-420-8541 · NIIN 014208541 · Part number 054047A3

Hartford Compressors Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 10119

Government record, cited

NSN 4820-01-420-8541 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-420-8541. Manufacturer of record part number: 054047A3.

Also searched as 4820-01-420-8541 · 4820014208541 · NIIN 014208541 · 01-420-8541 · FSC 4820 Valves, Nonpowered · CAGE 10119 · 054047A3 · EA00673

Nearby stock numbers ← 4820-01-420-8539 Valve, Expansion · 4820-01-420-8542 Valve, Globe →

4820-01-420-8541 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Hartford Compressors Inc

Identification

NSN: 4820-01-420-8541
NIIN: 014208541
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 054047A3
Manufacturer: Hartford Compressors Inc

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-420-8541, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hartford Compressors Inc. The record lists 2 manufacturer part numbers 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	Naval Group Site De Lorient (CAGE F3015); Hartford Compressors Inc (CAGE 10119)

Technical Specifications

Parameter	Value
NSN	4820-01-420-8541
Primary Part Number	054047A3
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Hartford Compressors 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
EA00673	Naval Group Site De Lorient (FRA)
054047A3 PRIMARY	Hartford Compressors 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 4820-01-420-8541?

NSN 4820-01-420-8541 is a Valve,safety Relief, manufactured by Hartford Compressors Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-420-8541?

NSN 4820-01-420-8541 has 2 manufacturer part numbers on file: EA00673 (Naval Group Site De Lorient), 054047A3 (Hartford Compressors Inc).

Is NSN 4820-01-420-8541 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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