PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-L-3661/27Lens,light

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-01-086-1172 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-01-086-1172 — this item is cataloged by the U.S. Government under National Stock Number 6210-01-086-1172. Primary manufacturer part number: MIL-L-3661/27.
Features
  • Lens,light — FSC 6210
  • Mounting Device Quantity: 11
  • Thread Direction: RIGHT-HANDRIGHT-HAND
  • Material: PLASTIC LENSPLASTIC LENS
  • Color: CLEAR LENSCLEAR LENS
  • Surface Condition: SMOOTH FACESMOOTH FACE
  • Thread Quantity: 32 PER INCH32 PER INCH
  • Style Designator: STOVEPIPESTOVEPIPE
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
  • Applications requiring Plastic Lensplastic Lens construction
General Description

The Lens,light, cataloged under National Stock Number 6210-01-086-1172, 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 9 commercial cross-references from 6 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
NSN6210-01-086-1172
Primary Part NumberMIL-L-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
Mounting Device Quantity11
Thread DirectionRIGHT-HANDRIGHT-HAND
MaterialPLASTIC LENSPLASTIC LENS
ColorCLEAR LENSCLEAR LENS
Surface ConditionSMOOTH FACESMOOTH FACE
Thread Quantity32 PER INCH32 PER INCH
Style DesignatorSTOVEPIPESTOVEPIPE
Light Transmission DesignTRANSPARENT LENSTRANSPARENT LENS
Surface ConditionSMOOTH BACKSMOOTH BACK
Thread Diameter0.312 INCHES0.312 INCHES IN
Mounting MethodEXTERNAL THREADEXTERNAL THREAD
Effective Length0.423 INCHES MINIMUM AND 0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM0.438 INCHES MAXIMUM IN
Hazardous Locations/environmental ProtectionELECTROMAGNETIC INTERFERENCE SHIELDED AND ELECTROMAGNETIC INTERFERENCE SHIELDED AND DUSTTIGHTDUSTTIGHT
Effective Diameter0.438 INCHES NOMINAL0.438 INCHES NOMINAL IN
Thread SeriesUNEFUNEF
Thread Class2A2A
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
6210-00-248-5478 INTERCHANGEABLE
Lens,light
6210-00-357-7019 INTERCHANGEABLE
Light,indicator
6210-00-420-0959 INTERCHANGEABLE
Lens,light
6210-00-420-0960 INTERCHANGEABLE
Lens,light
Cross-Reference Index
Part NumberManufacturer
MIL-L-3661/27 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
30NCN Littelfuse, Inc. (USA)
30NCN Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
5P40 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
05G00024-0076 Magnetek Inc Industrial Controls Group Div Dba Magnetek (USA)
LC27CN2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-3661/27 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
300CN Littelfuse, Inc. (USA)
P400C Safran Power Usa, Llc (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
6210-00-248-5478INTERCHANGEABLE
LENS,LIGHT
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

Frequently Asked Questions

What is NSN 6210-01-086-1172?

NSN 6210-01-086-1172 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 6210-01-086-1172?

NSN 6210-01-086-1172 has 9 cross-referenced part numbers: MIL-L-3661/27 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 30NCN (Littelfuse, Inc.), 30NCN (Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron), 5P40 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), 05G00024-0076 (Magnetek Inc Industrial Controls Group Div Dba Magnetek) and 4 more.

What NSN replaces 6210-01-086-1172?

There are 12 known substitutes for 6210-01-086-1172: 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-L-3661/27?

Key specifications for MIL-L-3661/27: Mounting Device Quantity: 11; Thread Direction: RIGHT-HANDRIGHT-HAND; Material: PLASTIC LENSPLASTIC LENS; Color: CLEAR LENSCLEAR LENS. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6210-01-086-1172 still in active supply?

NSN 6210-01-086-1172 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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