PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-L-3661/28Light,indicator

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6210-01-220-9848 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-01-220-9848 — this item is cataloged by the U.S. Government under National Stock Number 6210-01-220-9848. Primary manufacturer part number: MIL-L-3661/28.
Features
  • Light,indicator — FSC 6210
  • Hazardous Locations/environmental Protection: DRIPTIGHT
  • Lamp Base Type Accommodated: MIDGET FLANGED
  • Mounting Method: SCREW IN LENS
  • Lamp Type Accommodated and Quantity: 1 NEON
  • Style Designator: ROUND FRAME, ROUND LENS TYPE
  • Lens Color: YELLOW SINGLE LIGHT FIRST POSITION HORIZONTAL
  • 6 verified cross-references
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Light,indicator, cataloged under National Stock Number 6210-01-220-9848, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6210-01-220-9848
Primary Part NumberMIL-L-3661/28
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
Hazardous Locations/environmental ProtectionDRIPTIGHT
Lamp Base Type AccommodatedMIDGET FLANGED
Mounting MethodSCREW IN LENS
Lamp Type Accommodated and Quantity1 NEON
Style DesignatorROUND FRAME, ROUND LENS TYPE
Lens ColorYELLOW SINGLE LIGHT FIRST POSITION HORIZONTAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6210-00-145-1369 INTERCHANGEABLE
Lens,light
6210-00-151-5243 INTERCHANGEABLE
Light,indicator
6210-00-283-9976 INTERCHANGEABLE
Lens,light
6210-00-342-9598 INTERCHANGEABLE
Light,indicator
6210-00-448-4272 INTERCHANGEABLE
Light,indicator
6210-00-449-8455 INTERCHANGEABLE
Light,indicator
6210-00-449-8461 INTERCHANGEABLE
Light,indicator
6210-00-451-8323 INTERCHANGEABLE
Lens,light
6210-00-485-9848 INTERCHANGEABLE
Housing,light
6210-00-809-4274 INTERCHANGEABLE
Housing,light
Cross-Reference Index
Part NumberManufacturer
MIL-L-3661/28 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-3661/6 MIL-DTL-3661/28 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LH74/1-LC28YN2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LH74/3LC28YN2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-3661/6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-3661/6 AND MIL-L-3661/28 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6210-00-145-1369INTERCHANGEABLE
LENS,LIGHT
6210-00-151-5243INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-283-9976INTERCHANGEABLE
LENS,LIGHT
6210-00-342-9598INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-448-4272INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-449-8455INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-449-8461INTERCHANGEABLE
LIGHT,INDICATOR
6210-00-451-8323INTERCHANGEABLE
LENS,LIGHT
6210-00-485-9848INTERCHANGEABLE
HOUSING,LIGHT
6210-00-809-4274INTERCHANGEABLE
HOUSING,LIGHT
6210-01-011-0060INTERCHANGEABLE
LIGHT,INDICATOR
6210-01-020-6588INTERCHANGEABLE
LIGHT,INDICATOR

Frequently Asked Questions

What is NSN 6210-01-220-9848?

NSN 6210-01-220-9848 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 6210-01-220-9848?

NSN 6210-01-220-9848 has 6 cross-referenced part numbers: MIL-L-3661/28 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-3661/6 MIL-DTL-3661/28 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), LH74/1-LC28YN2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), LH74/3LC28YN2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-3661/6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 6210-01-220-9848?

There are 12 known substitutes for 6210-01-220-9848: 6210-00-145-1369, 6210-00-151-5243, 6210-00-283-9976 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-L-3661/28?

Key specifications for MIL-L-3661/28: Hazardous Locations/environmental Protection: DRIPTIGHT; Lamp Base Type Accommodated: MIDGET FLANGED; Mounting Method: SCREW IN LENS; Lamp Type Accommodated and Quantity: 1 NEON. 6 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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