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PartsTable / COMPONENT / MIL-L-3661 STYLE LH73-LC26
MIL-L-3661 STYLE LH73-LC26 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The LIGHT,INDICATOR is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, lens_type: CYLINDRICAL, EXTERNAL THREAD SINGLE LIGHT FIRST POSITION HORIZONTAL, lens_color: WHITE, LUNAR SINGLE LIGHT FIRST POSITION HORIZONTAL, overall_length: 1.170 INCHES NOMINAL IN, mounting_method: SCREW IN LENS, overall_diameter: 0.550 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6210-01-037-1265, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MIL-L-3661 STYLE LH73-LC26
NSN: 6210-01-037-1265
FSC: 6210
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY BODY
lens_typeCYLINDRICAL, EXTERNAL THREAD SINGLE LIGHT FIRST POSITION HORIZONTAL
lens_colorWHITE, LUNAR SINGLE LIGHT FIRST POSITION HORIZONTAL
lens_quantity1
overall_length1.170 INCHES NOMINAL IN
mounting_methodSCREW IN LENS
overall_diameter0.550 INCHES NOMINAL IN
style_designatorROUND FRAME, ROUND LENS TYPE
surface_treatmentNICKEL BODY
transmitted_light_colorWHITE, LUNAR SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
lamp_bulb_size_designatorT-1 3/4
terminal_type_and_quantity2 SOLDER LUG
NSN6210-01-037-1265
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LIGHT,INDICATOR TITLE COMPONENT PN MIL-L-3661 STYLE LH73-LC26 MFR LIGHT,INDICATOR
KEY FEATURES
•
LENS COLOR: WHITE, LUNAR SINGLE LIGHT FIRST POSITION HORIZONTAL
•
PANEL ACCOMMODATION HOLE DIAMETER: 0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
LENS QUANTITY: 1
•
TRANSMITTED LIGHT COLOR: WHITE, LUNAR SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
•
STYLE DESIGNATOR: ROUND FRAME, ROUND LENS TYPE
•
FURNISHED ITEMS AND QUANTITY: 1 HEXAGON NUT AND 1 LOCK WASHER
•
LENS LIGHT TRANSMISSION CHARACTERISTIC: TRANSLUCENT SINGLE LIGHT FIRST POSITION HORIZONTAL
•
LENS FACE SURFACE CONDITION: SMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
TECHNICAL CHARACTERISTICS (FLIS)
LENS COLORWHITE, LUNAR SINGLE LIGHT FIRST POSITION HORIZONTAL
PANEL ACCOMMODATION HOLE DIAMETER0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
LENS QUANTITY1
TRANSMITTED LIGHT COLORWHITE, LUNAR SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
STYLE DESIGNATORROUND FRAME, ROUND LENS TYPE
FURNISHED ITEMS AND QUANTITY1 HEXAGON NUT AND 1 LOCK WASHER
LENS LIGHT TRANSMISSION CHARACTERISTICTRANSLUCENT SINGLE LIGHT FIRST POSITION HORIZONTAL
LENS FACE SURFACE CONDITIONSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
SURFACE TREATMENTNICKEL BODY
MOUNTING METHODSCREW IN LENS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
416121-2Interchangeable
interchangeable cross-reference
interchangeable
4149600-39Interchangeable
interchangeable cross-reference
interchangeable
D262-2828-010Interchangeable
interchangeable cross-reference
interchangeable
MIL-L-3661/26Interchangeable
interchangeable cross-reference
interchangeable
7P39TLInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-3661/26Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-L-3661 STYLE LH73-LC26?
MIL-L-3661 STYLE LH73-LC26 is a LIGHT,INDICATOR.
What parts can replace MIL-L-3661 STYLE LH73-LC26?
There are 30 known substitutes for MIL-L-3661 STYLE LH73-LC26: 416121-2, 4149600-39, D262-2828-010 and 27 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-L-3661 STYLE LH73-LC26?
MIL-L-3661 STYLE LH73-LC26 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6210-01-037-1265. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026