PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-3661/58Lens,light

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-00-361-1171 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-00-361-1171 — this item is cataloged by the U.S. Government under National Stock Number 6210-00-361-1171. Primary manufacturer part number: MIL-DTL-3661/58.
Features
  • Lens,light — FSC 6210
  • Surface Condition: PAINTED FACE
  • Furnished Items: 2 GASKETS; 2 SCREWS; 2 BUSHINGS
  • Color: CLEAR LENS
  • Style Designator: FLAT
  • Mounting Method: UNTHREADED HOLE(S)
  • Mounting End Diameter: 0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
  • Mounting Device Quantity: 2
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
  • Applications requiring Plastic Acrylic Lens construction
General Description

The Lens,light, cataloged under National Stock Number 6210-00-361-1171, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6210-00-361-1171
Primary Part NumberMIL-DTL-3661/58
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
Surface ConditionPAINTED FACE
Furnished Items2 GASKETS; 2 SCREWS; 2 BUSHINGS
ColorCLEAR LENS
Style DesignatorFLAT
Mounting MethodUNTHREADED HOLE(S)
Mounting End Diameter0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
Mounting Device Quantity2
Light Transmission DesignTRANSPARENT LENS
Effective Length0.250 INCHES NOMINAL IN
Surface ConditionSMOOTH BACK
MaterialPLASTIC ACRYLIC LENS
Surface Condition ColorGRAY/GREY FACE
Effective Width1.438 INCHES NOMINAL IN
Hazardous Locations/environmental ProtectionDRIPPROOF AND HEAT RESISTANT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6210-00-160-9069 INTERCHANGEABLE
Lens,light
6210-00-491-7420 INTERCHANGEABLE
Lens,light
6210-00-587-4759913386-349 INTERCHANGEABLE
Lens,light
Instruments and Flight Research, Inc.
6210-00-587-4833 INTERCHANGEABLE
Lens,light
6210-00-926-1281 INTERCHANGEABLE
Lens,light
6210-01-007-3658 INTERCHANGEABLE
Lens,light
6210-01-168-1574C-122643-5 INTERCHANGEABLE
Lens,light
Lockheed Martin Corp
6210-01-168-1575C-122643-6 INTERCHANGEABLE
Lens,light
Lockheed Martin Corp
6210-01-168-2820C-122643-4 INTERCHANGEABLE
Lens,light
Lockheed Martin Corp
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-3661/58 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-L-3661/58 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LC44CN3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6210-00-160-9069INTERCHANGEABLE
LENS,LIGHT
6210-00-491-7420INTERCHANGEABLE
LENS,LIGHT
6210-00-587-4759INTERCHANGEABLE
LENS,LIGHT
913386-349
6210-00-587-4833INTERCHANGEABLE
LENS,LIGHT
6210-00-926-1281INTERCHANGEABLE
LENS,LIGHT
6210-01-007-3658INTERCHANGEABLE
LENS,LIGHT
6210-01-168-1574INTERCHANGEABLE
LENS,LIGHT
C-122643-5
6210-01-168-1575INTERCHANGEABLE
LENS,LIGHT
C-122643-6
6210-01-168-2820INTERCHANGEABLE
LENS,LIGHT
C-122643-4

Frequently Asked Questions

What is NSN 6210-00-361-1171?

NSN 6210-00-361-1171 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 6210-00-361-1171?

NSN 6210-00-361-1171 has 3 cross-referenced part numbers: MIL-DTL-3661/58 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-L-3661/58 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), LC44CN3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6210-00-361-1171?

There are 9 known substitutes for 6210-00-361-1171: 6210-00-160-9069, 6210-00-491-7420, 6210-00-587-4759 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-3661/58?

Key specifications for MIL-DTL-3661/58: Surface Condition: PAINTED FACE; Overall Height: 1.500 INCHES NOMINAL IN; Furnished Items: 2 GASKETS; 2 SCREWS; 2 BUSHINGS; Color: CLEAR LENS. 16 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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