PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-3661/9 AND MIL-L-3661/19Light,indicator

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-01-056-5164 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-01-056-5164 — this item is cataloged by the U.S. Government under National Stock Number 6210-01-056-5164. Primary manufacturer part number: MIL-DTL-3661/9 AND MIL-L-3661/19.
Features
  • Light,indicator — FSC 6210
  • Lens Color: COLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Lamp Bulb Size Designator: T-3 1/4
  • Hazardous Locations/environmental Protection: DRIPPROOF
  • Overall Diameter: 0.938 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN
  • Lamp Base Type Accommodated: MINIATURE BAYONET
  • Lens Quantity: 1
  • Lens Back Surface Condition: FROSTED SINGLE LIGHT FIRST POSITION HORIZONTAL
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Light,indicator, cataloged under National Stock Number 6210-01-056-5164, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Cancelled.

Technical Specifications
ParameterValue
NSN6210-01-056-5164
Primary Part NumberMIL-DTL-3661/9 AND MIL-L-3661/19
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
StatusCANCELLED
Lens ColorCOLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL
Lamp Bulb Size DesignatorT-3 1/4
Hazardous Locations/environmental ProtectionDRIPPROOF
Overall Diameter0.938 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN
Lamp Base Type AccommodatedMINIATURE BAYONET
Lens Quantity1
Lens Back Surface ConditionFROSTED SINGLE LIGHT FIRST POSITION HORIZONTAL
Terminal Type and Quantity2 SOLDER LUG
Lens TypeDOME, KNURLED, INTERNAL THREAD SINGLE LIGHT FIRST POSITION HORIZONTAL
Furnished Items and Quantity2 GASKET AND 1 HEXAGON NUT AND 1 LOCK WASHER
Lens Face Surface ConditionSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
Lens Light Transmission CharacteristicTRANSLUCENT SINGLE LIGHT FIRST POSITION HORIZONTAL
Style DesignatorROUND FRAME, ROUND LENS TYPE
Transmitted Light ColorCOLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
Mounting MethodPANEL LOCATION NOT OTHERWISE SPECIFIED
Mounting MethodSCREW ON LENS
Lamp Type Accommodated and Quantity1 NEON
Panel Accommodation Hole Diameter0.688 INCHES MINIMUM AND 0.694 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6210-00-159-1727 INTERCHANGEABLE
Housing,light
6210-00-229-5841 INTERCHANGEABLE
Light,indicator
6210-00-840-1057 INTERCHANGEABLE
Housing,light
6210-00-844-7446 INTERCHANGEABLE
Light,indicator
6210-00-844-7447 INTERCHANGEABLE
Light,indicator
6210-00-844-7449 INTERCHANGEABLE
Light,indicator
6210-00-989-9884 INTERCHANGEABLE
Housing,light
6210-01-003-8646 INTERCHANGEABLE
Light,indicator
6210-01-149-8534 INTERCHANGEABLE
Light,indicator
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-3661/9 AND MIL-L-3661/19 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-3661/9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-L-3661 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-3661/9 MIL-DTL-3661/19 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LH77/2-LC19CD3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LH77-2LC19CD3 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
6210-00-159-1727INTERCHANGEABLE
HOUSING,LIGHT
6210-00-229-5841INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-840-1057INTERCHANGEABLE
HOUSING,LIGHT
6210-00-844-7446INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-844-7447INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-844-7449INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-989-9884INTERCHANGEABLE
HOUSING,LIGHT
6210-01-003-8646INTERCHANGEABLE
LIGHT,INDICATOR
6210-01-149-8534INTERCHANGEABLE
LIGHT,INDICATOR

Frequently Asked Questions

What is NSN 6210-01-056-5164?

NSN 6210-01-056-5164 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: cancelled.

What are the part numbers for NSN 6210-01-056-5164?

NSN 6210-01-056-5164 has 6 cross-referenced part numbers: MIL-DTL-3661/9 AND MIL-L-3661/19 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-3661/9 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-L-3661 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-3661/9 MIL-DTL-3661/19 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), LH77/2-LC19CD3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 6210-01-056-5164?

There are 9 known substitutes for 6210-01-056-5164: 6210-00-159-1727, 6210-00-229-5841, 6210-00-840-1057 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-3661/9 AND MIL-L-3661/19?

Key specifications for MIL-DTL-3661/9 AND MIL-L-3661/19: Lens Color: COLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL; Lamp Bulb Size Designator: T-3 1/4; Overall Length: 2.236 INCHES MAXIMUM IN; Hazardous Locations/environmental Protection: DRIPPROOF. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6210-01-056-5164 still in active supply?

NSN 6210-01-056-5164 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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