Cartridge, Stop-Check Valve4820-01-620-9018

NSN 4820-01-620-9018 · NIIN 016209018 · Part number 8A2-03/010 BAR

Cunico Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 53424

Government record, cited

NSN 4820-01-620-9018 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-620-9018. Manufacturer of record part number: 8A2-03/010 BAR.

Also searched as 4820-01-620-9018 · 4820016209018 · NIIN 016209018 · 01-620-9018 · FSC 4820 Valves, Nonpowered · CAGE 53424 · 8A2-03/010 BAR

Nearby stock numbers ← 4820-01-620-9011 Valve, Check · 4820-01-620-9023 Valve, Angle →

4820-01-620-9018 — Valves, Nonpowered

Features

Cartridge,stop-Check Valve — FSC 4820
Port Diameter: 0.375 INCHES NOMINAL IN
Material: COPPER ALLOY AND NICKEL ALLOY
1 manufacturer part number on file
Manufacturer of record: Cunico Corporation

Identification

NSN: 4820-01-620-9018
NIIN: 016209018
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8A2-03/010 BAR
Manufacturer: Cunico Corporation

General Description

The Cartridge,stop-Check Valve, cataloged under National Stock Number 4820-01-620-9018, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cunico Corporation. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-620-9018
Primary Part Number	8A2-03/010 BAR
Item Name	Cartridge,stop-Check Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Cunico Corporation
Status	ACTIVE
Port Diameter	0.375 INCHES NOMINAL IN
Material	COPPER ALLOY AND NICKEL ALLOY

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

Cross-Reference Index

Part Number	Manufacturer
8A2-03/010 BAR PRIMARY	Cunico Corporation (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 4820-01-620-9018?

NSN 4820-01-620-9018 is a Cartridge,stop-Check Valve, manufactured by Cunico Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-620-9018?

NSN 4820-01-620-9018 has 1 manufacturer part number on file: 8A2-03/010 BAR (Cunico Corporation).

What are the specifications of 8A2-03/010 BAR?

Key specifications for 8A2-03/010 BAR: Port Diameter: 0.375 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: CARTRIDGE,VALVE; End Item Identification: STOP VALVE,CARTRIDGE TYPE,3/8 IN PIPE,SOCKET END WELD PREPS IN; Material: COPPER ALLOY AND NICKEL ALLOY. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-620-9018 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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