PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-7961Light,indicator

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-01-549-3146 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-01-549-3146 — this item is cataloged by the U.S. Government under National Stock Number 6210-01-549-3146. Primary manufacturer part number: MIL-DTL-7961.
Features
  • Light,indicator — FSC 6210
  • Mounting Method: PANEL LOCATION NOT OTHERWISE SPECIFIED
  • Lens Light Transmission Characteristic: TRANSPARENT SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Lamp Industry Number: 313
  • Lamp Base Type Accommodated: MINIATURE BAYONET
  • Material: ALUMINUM AND ALUMINUM ALLOY BODY
  • Lens Type: FLAT, KNURLED, EXTERNAL THREAD SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Lens Face Surface Condition: SMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
  • Applications requiring Aluminum and Aluminum Alloy Body construction
General Description

The Light,indicator, cataloged under National Stock Number 6210-01-549-3146, is classified within Federal Supply Class 6210 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6210-01-549-3146
Primary Part NumberMIL-DTL-7961
Item NameLight,indicator
FSC / FSG6210 / 62 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Mounting MethodPANEL LOCATION NOT OTHERWISE SPECIFIED
Lens Light Transmission CharacteristicTRANSPARENT SINGLE LIGHT FIRST POSITION HORIZONTAL
Lamp Industry Number313
Lamp Base Type AccommodatedMINIATURE BAYONET
MaterialALUMINUM AND ALUMINUM ALLOY BODY
Lens TypeFLAT, KNURLED, EXTERNAL THREAD SINGLE LIGHT FIRST POSITION HORIZONTAL
Lens Face Surface ConditionSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
Furnished Items and Quantity2 HEXAGON NUT AND 1 LOCK WASHER
Features ProvidedBLACKOUT DEGREE, PARTIAL AND DIMMING DEVICE AND PRESS TO TEST
Panel Thickness for Which Designed0.375 INCHES MAXIMUM IN
Mounting MethodSCREW IN LENS
Lens Back Surface ConditionSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
Panel Accommodation Hole Diameter0.609 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
Lamp Bulb Size DesignatorT-3 1/4
Lens ColorRED SINGLE LIGHT FIRST POSITION HORIZONTAL
Lamp Type Accommodated and Quantity1 INCANDESCENT
Lens Quantity1
Terminal Type and Quantity3 SOLDER LUG
Surface TreatmentANODIZE BODY
Transmitted Light ColorRED SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
Style DesignatorROUND FRAME, ROUND LENS TYPE
Hazardous Locations/environmental ProtectionDUSTTIGHT AND HUMIDITY RESISTANT AND SALT SPRAY RESISTANT
Overall Diameter0.750 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6210-00-299-6509 INTERCHANGEABLE
Light,indicator
6210-00-553-817933-60060-1 INTERCHANGEABLE
Light,indicator
The Boeing Company Div Defense
6210-00-726-0790 INTERCHANGEABLE
Light,indicator
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-7961 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS25331-2-313S Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS25331 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6210-00-299-6509INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-553-8179INTERCHANGEABLE
LIGHT,INDICATOR
33-60060-1
6210-00-726-0790INTERCHANGEABLE
LIGHT,INDICATOR

Frequently Asked Questions

What is NSN 6210-01-549-3146?

NSN 6210-01-549-3146 is a Light,indicator, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6210 (No Item Name Available). Status: active.

What are the part numbers for NSN 6210-01-549-3146?

NSN 6210-01-549-3146 has 3 cross-referenced part numbers: MIL-DTL-7961 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS25331-2-313S (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS25331 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6210-01-549-3146?

There are 3 known substitutes for 6210-01-549-3146: 6210-00-299-6509, 6210-00-553-8179, 6210-00-726-0790. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-7961?

Key specifications for MIL-DTL-7961: Mounting Method: PANEL LOCATION NOT OTHERWISE SPECIFIED; Lens Light Transmission Characteristic: TRANSPARENT SINGLE LIGHT FIRST POSITION HORIZONTAL; Lamp Industry Number: 313; Lamp Base Type Accommodated: MINIATURE BAYONET. 25 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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