PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS25041-4Light,indicator

Leonardo Spa Helicopters Division - Production Site · NSN 6210-00-284-0289 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-00-284-0289 — this item is cataloged by the U.S. Government under National Stock Number 6210-00-284-0289. Primary manufacturer part number: MS25041-4.
Features
  • Light,indicator — FSC 6210
  • Surface Treatment: ANODIZE BODY
  • Lens Back Surface Condition: SMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Lens Color: AMBER SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Panel Accommodation Hole Diameter: 0.625 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN
  • Mounting Method: SCREW ON LENS
  • Material: ALUMINUM BODY
  • Mounting Method: PANEL LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
  • Applications requiring Aluminum Body construction
General Description

The Light,indicator, cataloged under National Stock Number 6210-00-284-0289, is classified within Federal Supply Class 6210 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Leonardo Spa Helicopters Division - Production Site. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 33 commercial cross-references from 24 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6210-00-284-0289
Primary Part NumberMS25041-4
Item NameLight,indicator
FSC / FSG6210 / 62 — No Item Name Available
ManufacturerLeonardo Spa Helicopters Division - Production Site
StatusCANCELLED
Surface TreatmentANODIZE BODY
Lens Back Surface ConditionSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
Lens ColorAMBER SINGLE LIGHT FIRST POSITION HORIZONTAL
Panel Accommodation Hole Diameter0.625 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN
Mounting MethodSCREW ON LENS
MaterialALUMINUM BODY
Mounting MethodPANEL LOCATION NOT OTHERWISE SPECIFIED
Lens Light Transmission CharacteristicTRANSPARENT SINGLE LIGHT FIRST POSITION HORIZONTAL
Panel Thickness for Which Designed0.375 INCHES MAXIMUM IN
Lens TypeFLAT, KNURLED SINGLE LIGHT FIRST POSITION HORIZONTAL
Transmitted Light ColorAMBER SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
Lamp Type Accommodated and Quantity1 INCANDESCENT
Lens Face Surface ConditionSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
Style DesignatorROUND FRAME, ROUND LENS TYPE
Lens Quantity1
Lamp Base Type AccommodatedMIDGET FLANGED
Lamp Bulb Size DesignatorT-1 3/4
Overall Diameter0.650 INCHES MAXIMUM IN
Features ProvidedBLACKOUT DEGREE, PARTIAL AND DIMMING DEVICE AND PRESS TO TEST
Terminal Type and Quantity3 SOLDER LUG
Furnished Items and Quantity2 HEXAGON NUT AND 1 LOCK WASHER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
2920-00-051-956719500 INTERCHANGEABLE
Switch,float
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6515-00-343-860019-500 INTERCHANGEABLE
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Seal,plain Encased
5930-01-191-96781950-0 INTERCHANGEABLE
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6140-01-489-052019500 INTERCHANGEABLE
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Cross-Reference Index
Part NumberManufacturer
MS25041-4 Leonardo Spa Helicopters Division - Production Site (ITA)
804-1710-0333-925 Dialight Corporation (USA)
01-91180-10850M-4 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
610053-4 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
MIL-DTL-7961 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
6210PL1047519 Jednolity Indeks Materialowy - Uniform Material Index (POL)
M5470-04 Unison Industries Inc Slick Products Div (USA)
10505903 General Dynamics Land Systems Canadacorp (CAN)
VM911M4A Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
MIL-DTL-796 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
6210PL0217411 Jednolity Indeks Materialowy - Uniform Material Index (POL)
PL600487-21 Global Associates Ltd Signal Processing Systems (USA)
VM911M4 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
MS25041-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
801-1030-0333-504 Dialight Corporation (USA)
905.312 Webasto Thermosystems Inc (USA)
VM911XP25-4A Dialight Corporation (USA)
2515217-4 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
19500 Cessna Aircraft Co Arc Avionics Div (USA)
MS25041-4 Leonardo Uk Ltd (GBR)
Related Parts
2920-00-051-9567INTERCHANGEABLE
SWITCH,FLOAT
19500
6515-00-343-8600INTERCHANGEABLE
KNIFE,EAR
19-500
5330-01-141-3941INTERCHANGEABLE
SEAL,PLAIN ENCASED
5930-01-191-9678INTERCHANGEABLE
SWITCH,PRESSURE
1950-0
3694-01-240-4630INTERCHANGEABLE
BLOWER,STATIC ELIMINATING
19500
7350-01-256-1091INTERCHANGEABLE
BOWL,EATING
19500
4810-01-424-4981INTERCHANGEABLE
PARTS KIT,VALVE
AD-1P
6140-01-489-0520INTERCHANGEABLE
BATTERY,STORAGE
19500
6625-01-618-9792INTERCHANGEABLE
TEST SET,ELECTRICAL CABLE
4610-01-633-0661INTERCHANGEABLE
WATER PURIFICATION UNIT,SKID MOU
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Frequently Asked Questions

What is NSN 6210-00-284-0289?

NSN 6210-00-284-0289 is a Light,indicator, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 6210 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6210-00-284-0289?

NSN 6210-00-284-0289 has 33 cross-referenced part numbers: MS25041-4 (Leonardo Spa Helicopters Division - Production Site), 804-1710-0333-925 (Dialight Corporation), 01-91180-10850M-4 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), 610053-4 (Lockheed Martin Corporation Div Rms - Mitchel Field), MIL-DTL-7961 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 28 more.

What NSN replaces 6210-00-284-0289?

There are 10 known substitutes for 6210-00-284-0289: 2920-00-051-9567, 6515-00-343-8600, 5330-01-141-3941 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS25041-4?

Key specifications for MS25041-4: Surface Treatment: ANODIZE BODY; Lens Back Surface Condition: SMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL; Lens Color: AMBER SINGLE LIGHT FIRST POSITION HORIZONTAL; Panel Accommodation Hole Diameter: 0.625 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6210-00-284-0289 still in active supply?

NSN 6210-00-284-0289 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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