PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-3661/28Lens,light

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-00-283-9976 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-00-283-9976 — this item is cataloged by the U.S. Government under National Stock Number 6210-00-283-9976. Primary manufacturer part number: MIL-DTL-3661/28.
Features
  • Lens,light — FSC 6210
  • Thread Class: 2A A
  • Surface Condition: SMOOTH BACK
  • Light Transmission Design: TRANSLUCENT LENS
  • Effective Length: 0.496 INCHES MINIMUM AND 0.536 INCHES MAXIMUM IN
  • Thread Quantity: 32 PER INCH
  • Hazardous Locations/environmental Protection: DUSTTIGHT AND ELECTROMAGNETIC INTERFERENCE SHIELDED
  • Thread Direction: RIGHT-HAND
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 6210-00-283-9976, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6210-00-283-9976
Primary Part NumberMIL-DTL-3661/28
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
StatusACTIVE
Thread Class2A A
Surface ConditionSMOOTH BACK
Light Transmission DesignTRANSLUCENT LENS
Effective Length0.496 INCHES MINIMUM AND 0.536 INCHES MAXIMUM IN
Thread Quantity32 PER INCH
Hazardous Locations/environmental ProtectionDUSTTIGHT AND ELECTROMAGNETIC INTERFERENCE SHIELDED
Thread DirectionRIGHT-HAND
Mounting Device Quantity1
ColorWHITE, AVIATION LENS
Thread SeriesUNEF
Thread Diameter0.312 INCHES IN
Effective Diameter0.438 INCHES NOMINAL IN
Style DesignatorSTOVEPIPE
Surface ConditionSMOOTH FACE
Mounting MethodEXTERNAL THREAD
MaterialPLASTIC LENS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6210-00-145-1369 INTERCHANGEABLE
Lens,light
6210-00-449-8461 INTERCHANGEABLE
Light,indicator
6210-00-451-8323 INTERCHANGEABLE
Lens,light
6210-01-048-2746 INTERCHANGEABLE
Lens,light
6210-01-220-9848 INTERCHANGEABLE
Light,indicator
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-3661/28 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
370WN Littelfuse, Inc. (USA)
LC28WT2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL3661-28 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
17P41 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
LC-28WN2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-L-3661/28 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
132-00050 L3harris Maritime Power & Energy Solutions, Inc (USA)
1900400 Northrop Grumman Systems Corporation (USA)
LC28WTC Zf Industrieantriebe Witten Gmbh (DEU)
P402W2 Safran Power Usa, Llc (USA)
Related Parts
6210-00-145-1369INTERCHANGEABLE
LENS,LIGHT
6210-00-449-8461INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-451-8323INTERCHANGEABLE
LENS,LIGHT
6210-01-048-2746INTERCHANGEABLE
LENS,LIGHT
6210-01-220-9848INTERCHANGEABLE
LIGHT,INDICATOR

Frequently Asked Questions

What is NSN 6210-00-283-9976?

NSN 6210-00-283-9976 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: active.

What are the part numbers for NSN 6210-00-283-9976?

NSN 6210-00-283-9976 has 11 cross-referenced part numbers: MIL-DTL-3661/28 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 370WN (Littelfuse, Inc.), LC28WT2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL3661-28 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 17P41 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch) and 6 more.

What NSN replaces 6210-00-283-9976?

There are 5 known substitutes for 6210-00-283-9976: 6210-00-145-1369, 6210-00-449-8461, 6210-00-451-8323 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-3661/28?

Key specifications for MIL-DTL-3661/28: Thread Class: 2A A; Surface Condition: SMOOTH BACK; Light Transmission Design: TRANSLUCENT LENS; Effective Length: 0.496 INCHES MINIMUM AND 0.536 INCHES MAXIMUM IN. 17 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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