PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-L-3661Light,indicator

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-01-165-8775 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-01-165-8775 — this item is cataloged by the U.S. Government under National Stock Number 6210-01-165-8775. Primary manufacturer part number: MIL-L-3661.
Features
  • Light,indicator — FSC 6210
  • Mounting Method: PANEL LOCATION NOT OTHERWISE SPECIFIED
  • Mounting Method: SCREW IN LENS
  • Furnished Items and Quantity: 1 HEXAGON NUT AND 1 LOCK WASHER AND 1 O-RING
  • Transmitted Light Color: YELLOW SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
  • Lamp Type Accommodated and Quantity: 1 INCANDESCENT
  • Lens Face Surface Condition: SMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Material: ALUMINUM BODY
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
  • Applications requiring Aluminum Body construction
General Description

The Light,indicator, cataloged under National Stock Number 6210-01-165-8775, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Active.

Technical Specifications
ParameterValue
NSN6210-01-165-8775
Primary Part NumberMIL-L-3661
Item NameLight,indicator
FSC / FSG6210 / 62 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Mounting MethodPANEL LOCATION NOT OTHERWISE SPECIFIED
Mounting MethodSCREW IN LENS
Furnished Items and Quantity1 HEXAGON NUT AND 1 LOCK WASHER AND 1 O-RING
Transmitted Light ColorYELLOW SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
Lamp Type Accommodated and Quantity1 INCANDESCENT
Lens Face Surface ConditionSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
MaterialALUMINUM BODY
Lens TypeSTOVEPIPE, SHORT SHANK SINGLE LIGHT FIRST POSITION HORIZONTAL
Terminal Type and Quantity2 SOLDER LUG
Style DesignatorROUND FRAME, ROUND LENS TYPE
Panel Thickness for Which Designed0.188 INCHES MAXIMUM IN
Lens Back Surface ConditionSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
Lens Quantity1
Lamp Bulb Size DesignatorT-1 3/4
Lamp Base Type AccommodatedMIDGET FLANGED
Overall Diameter0.641 INCHES NOMINAL IN
Lens ColorYELLOW SINGLE LIGHT FIRST POSITION HORIZONTAL
Lens Light Transmission CharacteristicTRANSLUCENT SINGLE LIGHT FIRST POSITION HORIZONTAL
Panel Accommodation Hole Diameter0.465 INCHES MINIMUM AND 0.471 INCHES MAXIMUM IN
Hazardous Locations/environmental ProtectionWATERTIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5940-00-143-4771MS25036-103 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
6210-00-223-6625 INTERCHANGEABLE
Light,indicator
2840-00-413-283532836 INTERCHANGEABLE
Funnel,generator
Williams International Co., L.l.c.
6210-00-475-95405139-038AND139A304Y INTERCHANGEABLE
Light,indicator
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
6210-01-003-0259 INTERCHANGEABLE
Light,indicator
6210-01-003-4277 INTERCHANGEABLE
Light,indicator
6210-01-053-5100 INTERCHANGEABLE
Light,indicator
6210-01-248-2243 INTERCHANGEABLE
Light,indicator
4130-01-412-7342 INTERCHANGEABLE
Evaporator Coil,refrigeration
Cross-Reference Index
Part NumberManufacturer
MIL-L-3661 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-L-3661/35 MIL-DTL-3661/47 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-3661/35 MIL-DTL-3661/47 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
32836 Zf Industrieantriebe Witten Gmbh (DEU)
LH89/1-LC35YT2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5940-00-143-4771INTERCHANGEABLE
TERMINAL,LUG
MS25036-103
6210-00-223-6625INTERCHANGEABLE
LIGHT,INDICATOR
2840-00-413-2835INTERCHANGEABLE
FUNNEL,GENERATOR
32836
6210-00-475-9540INTERCHANGEABLE
LIGHT,INDICATOR
5139-038AND139A304Y
6210-01-003-0259INTERCHANGEABLE
LIGHT,INDICATOR
6210-01-003-4277INTERCHANGEABLE
LIGHT,INDICATOR
6210-01-053-5100INTERCHANGEABLE
LIGHT,INDICATOR
6210-01-248-2243INTERCHANGEABLE
LIGHT,INDICATOR
4130-01-412-7342INTERCHANGEABLE
EVAPORATOR COIL,REFRIGERATION

Frequently Asked Questions

What is NSN 6210-01-165-8775?

NSN 6210-01-165-8775 is a Light,indicator, 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 6210-01-165-8775?

NSN 6210-01-165-8775 has 5 cross-referenced part numbers: MIL-L-3661 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-L-3661/35 MIL-DTL-3661/47 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-3661/35 MIL-DTL-3661/47 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 32836 (Zf Industrieantriebe Witten Gmbh), LH89/1-LC35YT2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6210-01-165-8775?

There are 9 known substitutes for 6210-01-165-8775: 5940-00-143-4771, 6210-00-223-6625, 2840-00-413-2835 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-L-3661?

Key specifications for MIL-L-3661: Mounting Method: PANEL LOCATION NOT OTHERWISE SPECIFIED; Mounting Method: SCREW IN LENS; Overall Length: 1.250 INCHES NOMINAL IN; Furnished Items and Quantity: 1 HEXAGON NUT AND 1 LOCK WASHER AND 1 O-RING. 21 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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