PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-3661/27Lens,light

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-00-248-5478 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-00-248-5478 — this item is cataloged by the U.S. Government under National Stock Number 6210-00-248-5478. Primary manufacturer part number: MIL-DTL-3661/27.
Features
  • Lens,light — FSC 6210
  • Effective Length: 0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
  • Color: GREEN, AVIATION LENS
  • Thread Quantity: 32 PER INCH
  • Style Designator: STOVEPIPE
  • Mounting Device Quantity: 1
  • Light Transmission Design: TRANSLUCENT LENS
  • Thread Series: UNEF
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 6210-00-248-5478, 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 14 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6210-00-248-5478
Primary Part NumberMIL-DTL-3661/27
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
Effective Length0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
ColorGREEN, AVIATION LENS
Thread Quantity32 PER INCH
Style DesignatorSTOVEPIPE
Mounting Device Quantity1
Light Transmission DesignTRANSLUCENT LENS
Thread SeriesUNEF
Hazardous Locations/environmental ProtectionELECTROMAGNETIC INTERFERENCE SHIELDED AND DUSTTIGHT
Surface ConditionSMOOTH BACK
Mounting MethodEXTERNAL THREAD
Effective Diameter0.438 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
MaterialPLASTIC LENS
Surface ConditionSMOOTH FACE
Thread Class2A A
Thread Diameter0.312 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6210-00-117-5058 INTERCHANGEABLE
Lens,light
6210-00-128-0023 INTERCHANGEABLE
Light,indicator
6210-00-169-6129 INTERCHANGEABLE
Lens,light
6210-00-183-0361 INTERCHANGEABLE
Light,indicator
6210-00-183-0453 INTERCHANGEABLE
Light,indicator
6210-00-231-06136P40 INTERCHANGEABLE
Lens,light
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
6210-00-357-7019 INTERCHANGEABLE
Light,indicator
6210-00-420-0959 INTERCHANGEABLE
Lens,light
6210-00-420-0960 INTERCHANGEABLE
Lens,light
6210-00-482-6281 INTERCHANGEABLE
Lens,light
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-3661/27 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
300GT Littelfuse, Inc. (USA)
10444470 Nimikkeistokeskus Ncb Finland (FIN)
7P40TL Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
LC27GN2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-L-3661/27 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LC27GT2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
6210PL2171741 Jednolity Indeks Materialowy - Uniform Material Index (POL)
P400G4 Safran Power Usa, Llc (USA)
235-0972 Dialight Corporation (USA)
05G00024-0074 Magnetek Inc Industrial Controls Group Div Dba Magnetek (USA)
935-0972 Dialight Corporation (USA)
NSWC/110-064-00 5 Zf Industrieantriebe Witten Gmbh (DEU)
110-034-106 Aydin Displays, Inc. (USA)
Related Parts
6210-00-117-5058INTERCHANGEABLE
LENS,LIGHT
6210-00-128-0023INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-169-6129INTERCHANGEABLE
LENS,LIGHT
6210-00-183-0361INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-183-0453INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-231-0613INTERCHANGEABLE
LENS,LIGHT
6P40
6210-00-357-7019INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-420-0959INTERCHANGEABLE
LENS,LIGHT
6210-00-420-0960INTERCHANGEABLE
LENS,LIGHT
6210-00-482-6281INTERCHANGEABLE
LENS,LIGHT
6210-01-048-5450INTERCHANGEABLE
LIGHT,INDICATOR
6210-01-086-1172INTERCHANGEABLE
LENS,LIGHT

Frequently Asked Questions

What is NSN 6210-00-248-5478?

NSN 6210-00-248-5478 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 6210-00-248-5478?

NSN 6210-00-248-5478 has 14 cross-referenced part numbers: MIL-DTL-3661/27 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 300GT (Littelfuse, Inc.), 10444470 (Nimikkeistokeskus Ncb Finland), 7P40TL (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), LC27GN2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 9 more.

What NSN replaces 6210-00-248-5478?

There are 12 known substitutes for 6210-00-248-5478: 6210-00-117-5058, 6210-00-128-0023, 6210-00-169-6129 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-3661/27?

Key specifications for MIL-DTL-3661/27: Effective Length: 0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN; Color: GREEN, AVIATION LENS; Thread Quantity: 32 PER INCH; Style Designator: STOVEPIPE. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6210-00-248-5478 still in active supply?

NSN 6210-00-248-5478 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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