PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4578Lamp Unit,vehicular

J. W. Speaker Corporation Dba Jw Speaker Corp · NSN 6220-01-432-5670 · FSC 6220 · No Item Name Available
Verified by PartsTable
NSN 6220-01-432-5670 — this item is cataloged by the U.S. Government under National Stock Number 6220-01-432-5670. Primary manufacturer part number: 4578.
Features
  • Lamp Unit,vehicular — FSC 6220
  • 2 verified cross-references
  • Primary manufacturer: J. W. Speaker Corporation Dba Jw Speaker Corp
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp Unit,vehicular, cataloged under National Stock Number 6220-01-432-5670, is classified within Federal Supply Class 6220 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is J. W. Speaker Corporation Dba Jw Speaker Corp. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6220-01-432-5670
Primary Part Number4578
Item NameLamp Unit,vehicular
FSC / FSG6220 / 62 — No Item Name Available
ManufacturerJ. W. Speaker Corporation Dba Jw Speaker Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5935-00-149-3230 INTERCHANGEABLE
Connector,receptacle,electrical
6250-00-208-6822 INTERCHANGEABLE
Lampholder
6240-00-643-068711231P11 INTERCHANGEABLE
Lamp,incandescent
Taylor Machine Works Inc
5330-01-027-64514578 INTERCHANGEABLE
Gasket
Eaton Corporation Div Fed
2540-01-168-6463 INTERCHANGEABLE
Arm,windshield Wiper
5865-01-196-98684578 INTERCHANGEABLE
Triplexer,radio
Teledyne Defense Electronics, Llc Dba Teledyne Microwave Solutions
5935-01-370-18524578 INTERCHANGEABLE
Connector,receptacle,electrical
Fluke Electronics Corp
7930-01-381-3508 INTERCHANGEABLE
Cleaning Compound,toilet Bowl
6520-01-556-3136EK-091 INTERCHANGEABLE
Pedal,foot
Electro Medical Systems, Llc Dba Electro Medical Systems
Cross-Reference Index
Part NumberManufacturer
4578 PRIMARY J. W. Speaker Corporation Dba Jw Speaker Corp (USA)
3070AS649-2 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
Related Parts
5935-00-149-3230INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
6250-00-208-6822INTERCHANGEABLE
LAMPHOLDER
6240-00-643-0687INTERCHANGEABLE
LAMP,INCANDESCENT
11231P11
5330-01-027-6451INTERCHANGEABLE
GASKET
4578
2540-01-168-6463INTERCHANGEABLE
ARM,WINDSHIELD WIPER
5865-01-196-9868INTERCHANGEABLE
TRIPLEXER,RADIO
4578
5935-01-370-1852INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4578
7930-01-381-3508INTERCHANGEABLE
CLEANING COMPOUND,TOILET BOWL
6520-01-556-3136INTERCHANGEABLE
PEDAL,FOOT
EK-091

Frequently Asked Questions

What is NSN 6220-01-432-5670?

NSN 6220-01-432-5670 is a Lamp Unit,vehicular, manufactured by J. W. Speaker Corporation Dba Jw Speaker Corp, classified under FSC 6220 (No Item Name Available). Status: active.

What are the part numbers for NSN 6220-01-432-5670?

NSN 6220-01-432-5670 has 2 cross-referenced part numbers: 4578 (J. W. Speaker Corporation Dba Jw Speaker Corp), 3070AS649-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What NSN replaces 6220-01-432-5670?

There are 9 known substitutes for 6220-01-432-5670: 5935-00-149-3230, 6250-00-208-6822, 6240-00-643-0687 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4578?

Key specifications for 4578: End Item Identification: SPECIAL TOOL AND SUPPORT EQUIP. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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