Valve Assembly4820-01-550-4459

NSN 4820-01-550-4459 · NIIN 015504459 · Part number Y3J34620

Everllence Usa Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 5P630

Government record, cited

NSN 4820-01-550-4459 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-550-4459. Manufacturer of record part number: Y3J34620.

Also searched as 4820-01-550-4459 · 4820015504459 · NIIN 015504459 · 01-550-4459 · FSC 4820 Valves, Nonpowered · CAGE 5P630 · Y3J34620

Nearby stock numbers ← 4820-01-550-4401 Ring, Valve Piston · 4820-01-550-4471 Valve, Regulating, Fluid Pressure →

4820-01-550-4459 — Valves, Nonpowered

Features

Valve Assembly — FSC 4820
Criticality Code Justification: AGAV
2 manufacturer part numbers on file
Manufacturer of record: Everllence Usa Inc.

Identification

NSN: 4820-01-550-4459
NIIN: 015504459
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: Y3J34620
Manufacturer: Everllence Usa Inc.

General Description

The Valve Assembly, cataloged under National Stock Number 4820-01-550-4459, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Everllence Usa Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-550-4459
Primary Part Number	Y3J34620
Item Name	Valve Assembly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Everllence Usa Inc.
Status	ACTIVE
Criticality Code Justification	AGAV

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	Y

Cross-Reference Index

Part Number	Manufacturer
Y3J34620 PRIMARY	Everllence Usa Inc. (USA)
Y3J34620	Viking Incorporated Dba Viking 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 4820-01-550-4459?

NSN 4820-01-550-4459 is a Valve Assembly, manufactured by Everllence Usa Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-550-4459?

NSN 4820-01-550-4459 has 2 manufacturer part numbers on file: Y3J34620 (Everllence Usa Inc.), Y3J34620 (Viking Incorporated Dba Viking Inc).

What are the specifications of Y3J34620?

Key specifications for Y3J34620: Criticality Code Justification: AGAV; Special Features: THIS NSN IS FOR A PART FOR THE PAXMAN DEISEL ENGINE USED ON NAVY PC CLASS OF SHIPS AND COAST GUARD ISLAND CLASS PATROL CRAFT.; End Item Identification: PAXMAN DIESEL ENGINE. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-550-4459 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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