PartsTable TECHNICAL DATA SHEET

NSN 4820-01-626-7788Government record, cited

Piston, Valve4820-01-626-7788

NSN 4820-01-626-7788 · NIIN 016267788 · Part number 5626-25-1

Dukes Aerospace, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 09445

Government record, cited

NSN 4820-01-626-7788 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-626-7788. Manufacturer of record part number: 5626-25-1.

Also searched as 4820-01-626-7788 · 4820016267788 · NIIN 016267788 · 01-626-7788 · FSC 4820 Valves, Nonpowered · CAGE 09445 · 5626-25-1

Nearby stock numbers ← 4820-01-626-7178 Valve, Swg Chk · 4820-01-626-7804 Valve, Butterfly →

4820-01-626-7788 — Valves, Nonpowered

Features

Piston,valve — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Dukes Aerospace, Inc.

Identification

NSN: 4820-01-626-7788
NIIN: 016267788
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 5626-25-1
Manufacturer: Dukes Aerospace, Inc.

General Description

The Piston,valve, cataloged under National Stock Number 4820-01-626-7788, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dukes Aerospace, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Piston,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (CAGE 70974); Dukes Aerospace, Inc. (CAGE 09445)

Technical Specifications

Parameter	Value
NSN	4820-01-626-7788
Primary Part Number	5626-25-1
Item Name	Piston,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Dukes Aerospace, 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	F

Cross-Reference Index

Part Number	Manufacturer
5626-25-1	Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (USA)
5626-25-1 PRIMARY	Dukes Aerospace, Inc. (USA)

Reference documents

Reference	Meaning
5626-25-1	3/2 Design control — primary reference U.S. Government activity

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 4820-01-626-7788?

NSN 4820-01-626-7788 is a Piston,valve, manufactured by Dukes Aerospace, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-626-7788?

NSN 4820-01-626-7788 has 2 manufacturer part numbers on file: 5626-25-1 (Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems), 5626-25-1 (Dukes Aerospace, Inc.).

Is NSN 4820-01-626-7788 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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