PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-3661Lens,light

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-00-067-8373 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-00-067-8373 — this item is cataloged by the U.S. Government under National Stock Number 6210-00-067-8373. Primary manufacturer part number: MIL-DTL-3661.
Features
  • Lens,light — FSC 6210
  • Surface Condition: SMOOTH FACE
  • Hazardous Locations/environmental Protection: DRIPPROOF
  • Dimming Device Type: MECHANICAL SHUTTER
  • Mounting Device Quantity: 1
  • Color: BLACK INSCRIPTION
  • Inscription: DIM ARROW SYMBOL CW AND BRIGHT ARROW SYMBOL CCW HOLDER
  • Color: BLACK INSCRIPTION BACKGROUND
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
  • Applications requiring Plastic Lens construction
General Description

The Lens,light, cataloged under National Stock Number 6210-00-067-8373, 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 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
NSN6210-00-067-8373
Primary Part NumberMIL-DTL-3661
Item NameLens,light
FSC / FSG6210 / 62 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Surface ConditionSMOOTH FACE
Hazardous Locations/environmental ProtectionDRIPPROOF
Dimming Device TypeMECHANICAL SHUTTER
Mounting Device Quantity1
ColorBLACK INSCRIPTION
InscriptionDIM ARROW SYMBOL CW AND BRIGHT ARROW SYMBOL CCW HOLDER
ColorBLACK INSCRIPTION BACKGROUND
Thread Class2A A
ColorCLEAR LENS
Style DesignatorCONVEX
Thread SeriesUNS
Blackout DegreeCOMPLETE
Furnished ItemsGASKET
Surface ConditionFROSTED BACK
Thread DirectionRIGHT-HAND
Light Transmission DesignTRANSLUCENT LENS
Overall Diameter0.780 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN
Thread Diameter0.562 INCHES IN
Effective Diameter0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
Mounting MethodEXTERNAL THREAD
Thread Quantity27 PER INCH
ColorBLACK HOLDER
MaterialPLASTIC LENS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6210-00-067-8375 INTERCHANGEABLE
Lens,light
6210-00-067-8378 INTERCHANGEABLE
Lens,light
6210-00-811-8377 INTERCHANGEABLE
Lens,light
6210-00-842-6939 INTERCHANGEABLE
Lens,light
6210-00-843-5379 INTERCHANGEABLE
Lens,light
6210-00-865-3450 INTERCHANGEABLE
Lens,light
6210-00-894-2388 INTERCHANGEABLE
Lens,light
6210-00-914-9543 INTERCHANGEABLE
Lens,light
6210-00-990-4645 INTERCHANGEABLE
Lens,light
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-3661 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LC17CD3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-L-3661/17 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
LC17CD Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
203-0117-203 Dialight Corporation (USA)
Related Parts
6210-00-067-8375INTERCHANGEABLE
LENS,LIGHT
6210-00-067-8378INTERCHANGEABLE
LENS,LIGHT
6210-00-811-8377INTERCHANGEABLE
LENS,LIGHT
6210-00-842-6939INTERCHANGEABLE
LENS,LIGHT
6210-00-843-5379INTERCHANGEABLE
LENS,LIGHT
6210-00-865-3450INTERCHANGEABLE
LENS,LIGHT
6210-00-894-2388INTERCHANGEABLE
LENS,LIGHT
6210-00-914-9543INTERCHANGEABLE
LENS,LIGHT
6210-00-990-4645INTERCHANGEABLE
LENS,LIGHT

Frequently Asked Questions

What is NSN 6210-00-067-8373?

NSN 6210-00-067-8373 is a Lens,light, 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 6210-00-067-8373?

NSN 6210-00-067-8373 has 6 cross-referenced part numbers: MIL-DTL-3661 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), LC17CD3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-L-3661/17 (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), LC17CD (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 6210-00-067-8373?

There are 9 known substitutes for 6210-00-067-8373: 6210-00-067-8375, 6210-00-067-8378, 6210-00-811-8377 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-3661?

Key specifications for MIL-DTL-3661: Surface Condition: SMOOTH FACE; Hazardous Locations/environmental Protection: DRIPPROOF; Dimming Device Type: MECHANICAL SHUTTER; Mounting Device Quantity: 1. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6210-00-067-8373 still in active supply?

NSN 6210-00-067-8373 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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