PartsTable TECHNICAL DATA SHEET

NSN 4820-01-475-5628Government record, cited

Servovalve, Hydraulic4820-01-475-5628

NSN 4820-01-475-5628 · NIIN 014755628 · Part number 666000333

Lockheed Martin Aeronautical Systems Support Company Dba Lmassc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 74703

Government record, cited

NSN 4820-01-475-5628 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-475-5628. Manufacturer of record part number: 666000333.

Also searched as 4820-01-475-5628 · 4820014755628 · NIIN 014755628 · 01-475-5628 · FSC 4820 Valves, Nonpowered · CAGE 74703 · 666000333

Nearby stock numbers ← 4820-01-475-5613 · 4820-01-475-5667 →

4820-01-475-5628 — Valves, Nonpowered

Features

Servovalve,hydraulic — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Lockheed Martin Aeronautical Systems Support Company Dba Lmassc

Identification

NSN: 4820-01-475-5628
NIIN: 014755628
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 666000333
Manufacturer: Lockheed Martin Aeronautical Systems Support Company Dba Lmassc

General Description

The Servovalve,hydraulic, cataloged under National Stock Number 4820-01-475-5628, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lockheed Martin Aeronautical Systems Support Company Dba Lmassc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	Servovalve,hydraulic
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Lockheed Martin Aeronautical Systems Support Company Dba Lmassc (CAGE 74703)

Technical Specifications

Parameter	Value
NSN	4820-01-475-5628
Primary Part Number	666000333
Item Name	Servovalve,hydraulic
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Lockheed Martin Aeronautical Systems Support Company Dba Lmassc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL B — Remove Demilitarization Key Points
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
666000333 PRIMARY	Lockheed Martin Aeronautical Systems Support Company Dba Lmassc (USA)

Reference documents

Reference	Meaning
666000333	5/9 Secondary reference Lockheed Martin Services, Llc

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 4820-01-475-5628?

NSN 4820-01-475-5628 is a Servovalve,hydraulic, manufactured by Lockheed Martin Aeronautical Systems Support Company Dba Lmassc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-475-5628?

NSN 4820-01-475-5628 has 1 manufacturer part number on file: 666000333 (Lockheed Martin Aeronautical Systems Support Company Dba Lmassc).

Is NSN 4820-01-475-5628 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.

What is the DEMIL code for NSN 4820-01-475-5628?

NSN 4820-01-475-5628 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.

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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