Valve, Stop-Check4820-01-442-3391

NSN 4820-01-442-3391 · NIIN 014423391 · Part number DM12559

Dudlik Industries Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 6T658

Government record, cited

NSN 4820-01-442-3391 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-442-3391. Manufacturer of record part number: DM12559.

Also searched as 4820-01-442-3391 · 4820014423391 · NIIN 014423391 · 01-442-3391 · FSC 4820 Valves, Nonpowered · CAGE 6T658 · DM12559

Nearby stock numbers ← 4820-01-442-3373 Valve, Check · 4820-01-442-3402 Valve, Poppet, Air St →

4820-01-442-3391 — Valves, Nonpowered

Features

Valve,stop-Check — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Dudlik Industries Inc.

Identification

NSN: 4820-01-442-3391
NIIN: 014423391
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: DM12559
Manufacturer: Dudlik Industries Inc.

General Description

The Valve,stop-Check, cataloged under National Stock Number 4820-01-442-3391, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dudlik Industries 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,stop-Check
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Dudlik Industries Inc. (CAGE 6T658)

Technical Specifications

Parameter	Value
NSN	4820-01-442-3391
Primary Part Number	DM12559
Item Name	Valve,stop-Check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Dudlik Industries 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)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
DM12559 PRIMARY	Dudlik Industries 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 4820-01-442-3391?

NSN 4820-01-442-3391 is a Valve,stop-Check, manufactured by Dudlik Industries Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-442-3391?

NSN 4820-01-442-3391 has 1 manufacturer part number on file: DM12559 (Dudlik Industries Inc.).

Is NSN 4820-01-442-3391 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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