PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-3661/18Light,indicator

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-00-080-1058 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-00-080-1058 — this item is cataloged by the U.S. Government under National Stock Number 6210-00-080-1058. Primary manufacturer part number: MIL-DTL-3661/18.
Features
  • Light,indicator — FSC 6210
  • Lens Color: COLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Lamp Base Type Accommodated: MINIATURE BAYONET
  • Lens Type: CONVEX, KNURLED, THREADED SHANK SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Transmitted Light Color: COLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
  • Hazardous Locations/environmental Protection: DRIPPROOF
  • Panel Accommodation Hole Diameter: 0.688 INCHES MINIMUM AND 0.694 INCHES MAXIMUM IN
  • Lamp Bulb Size Designator: T-3 1/4
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
  • Applications requiring Copper Alloy Body construction
General Description

The Light,indicator, cataloged under National Stock Number 6210-00-080-1058, 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 22 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6210-00-080-1058
Primary Part NumberMIL-DTL-3661/18
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
Lens ColorCOLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL
Lamp Base Type AccommodatedMINIATURE BAYONET
Lens TypeCONVEX, KNURLED, THREADED SHANK SINGLE LIGHT FIRST POSITION HORIZONTAL
Transmitted Light ColorCOLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
Hazardous Locations/environmental ProtectionDRIPPROOF
Panel Accommodation Hole Diameter0.688 INCHES MINIMUM AND 0.694 INCHES MAXIMUM IN
Lamp Bulb Size DesignatorT-3 1/4
Overall Diameter0.938 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN
Mounting MethodSCREW IN LENS
Furnished Items and Quantity1 GASKET AND 1 HEXAGON NUT AND 1 LOCK WASHER
Lens Back Surface ConditionFROSTED SINGLE LIGHT FIRST POSITION HORIZONTAL
Panel Thickness for Which Designed0.344 INCHES MAXIMUM IN
Lens Light Transmission CharacteristicTRANSLUCENT SINGLE LIGHT FIRST POSITION HORIZONTAL
Terminal Type and Quantity2 SOLDER LUG
Features ProvidedBLACKOUT DEGREE, PARTIAL AND DIMMING DEVICE
Mounting MethodPANEL LOCATION NOT OTHERWISE SPECIFIED
Lens Face Surface ConditionSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
Surface TreatmentNICKEL BODY
Style DesignatorROUND FRAME, ROUND LENS TYPE
Lamp Type Accommodated and Quantity1 INCANDESCENT
MaterialCOPPER ALLOY BODY
Lens Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6210-00-054-5466 INTERCHANGEABLE
Lens,light
6210-00-056-9192 INTERCHANGEABLE
Lens,light
6210-00-067-8370 INTERCHANGEABLE
Lens,light
6210-00-067-8371 INTERCHANGEABLE
Lens,light
6210-00-067-8372 INTERCHANGEABLE
Lens,light
6210-00-810-7583 INTERCHANGEABLE
Light,indicator
6210-00-857-2338 INTERCHANGEABLE
Lens,light
6210-00-892-2380 INTERCHANGEABLE
Light,indicator
6210-00-996-0675202-0410-0113-203 INTERCHANGEABLE
Light,indicator
Dialight Corporation
6210-01-071-8219 INTERCHANGEABLE
Light,indicator
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-3661/18 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
353-0410-0117-203 Dialight Corporation (USA)
MIL-L-3661 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LH75LC18CD Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LH76/3-LC18CD3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-3661/8 MIL-DTL-3661/18 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6210-00-054-5466INTERCHANGEABLE
LENS,LIGHT
6210-00-056-9192INTERCHANGEABLE
LENS,LIGHT
6210-00-067-8370INTERCHANGEABLE
LENS,LIGHT
6210-00-067-8371INTERCHANGEABLE
LENS,LIGHT
6210-00-067-8372INTERCHANGEABLE
LENS,LIGHT
6210-00-810-7583INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-857-2338INTERCHANGEABLE
LENS,LIGHT
6210-00-892-2380INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-996-0675INTERCHANGEABLE
LIGHT,INDICATOR
202-0410-0113-203
6210-01-071-8219INTERCHANGEABLE
LIGHT,INDICATOR

Frequently Asked Questions

What is NSN 6210-00-080-1058?

NSN 6210-00-080-1058 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 6210-00-080-1058?

NSN 6210-00-080-1058 has 6 cross-referenced part numbers: MIL-DTL-3661/18 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 353-0410-0117-203 (Dialight Corporation), MIL-L-3661 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), LH75LC18CD (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), LH76/3-LC18CD3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 6210-00-080-1058?

There are 10 known substitutes for 6210-00-080-1058: 6210-00-054-5466, 6210-00-056-9192, 6210-00-067-8370 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-3661/18?

Key specifications for MIL-DTL-3661/18: Lens Color: COLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL; Lamp Base Type Accommodated: MINIATURE BAYONET; Lens Type: CONVEX, KNURLED, THREADED SHANK SINGLE LIGHT FIRST POSITION HORIZONTAL; Transmitted Light Color: COLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A. 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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