PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5S5149Lamp,incandescent

Caterpillar Inc Div Caterpillar Defense · NSN 6240-01-187-6878 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-187-6878 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-187-6878. Primary manufacturer part number: 5S5149.
Features
  • Lamp,incandescent — FSC 6240
  • 3 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-187-6878, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameLamp,incandescent
FSC / FSG6240 — No Item Name Available (FSG 62)
ManufacturersAmerican National Standards Institute Incorporated Dba American National Standards Institute (CAGE 80204); Cooper Industries Inc Champion Aviation Products (CAGE 94988); Caterpillar Inc Div Caterpillar Defense (CAGE 11083)
Technical Specifications
ParameterValue
NSN6240-01-187-6878
Primary Part Number5S5149
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5940-00-143-4771MS25036-103 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5905-00-232-18481960919-1 INTERCHANGEABLE
Resistor,electrical
Honeywell Intl Inc Defense Avionics Systems
5999-00-437-6493531587-1 INTERCHANGEABLE
Delay Line
Raytheon Company Dba Raytheon
5330-00-465-556502420481400 INTERCHANGEABLE
Seal,plain Encased
Freudenberg-Nok General Partnership Dba Fredenberg-Nok Seals Division
5310-00-489-7159 INTERCHANGEABLE
Locknut
5310-00-637-25114814 INTERCHANGEABLE
Washer,lock
Telemechanics Inc
4820-00-825-38500548-A01-KM0100 INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5905-01-186-6831 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
6685-01-436-89914814 INTERCHANGEABLE
Humidity Element,resistance
Newport Scientific Inc Hygrodynamic Products Div
Cross-Reference Index
Part NumberManufacturer
4814 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
4814 Cooper Industries Inc Champion Aviation Products (USA)
5S5149 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5940-00-143-4771INTERCHANGEABLE
TERMINAL,LUG
MS25036-103
5905-00-232-1848INTERCHANGEABLE
RESISTOR,ELECTRICAL
1960919-1
5999-00-437-6493INTERCHANGEABLE
DELAY LINE
531587-1
5330-00-465-5565INTERCHANGEABLE
SEAL,PLAIN ENCASED
02420481400
5310-00-489-7159INTERCHANGEABLE
LOCKNUT
5310-00-637-2511INTERCHANGEABLE
WASHER,LOCK
4814
4820-00-825-3850INTERCHANGEABLE
VALVE,SAFETY RELIEF
0548-A01-KM0100
5905-01-186-6831INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
6685-01-436-8991INTERCHANGEABLE
HUMIDITY ELEMENT,RESISTANCE
4814

Frequently Asked Questions

What is NSN 6240-01-187-6878?

NSN 6240-01-187-6878 is a Lamp,incandescent, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-187-6878?

NSN 6240-01-187-6878 has 3 cross-referenced part numbers: 4814 (American National Standards Institute Incorporated Dba American National Standards Institute), 4814 (Cooper Industries Inc Champion Aviation Products), 5S5149 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 6240-01-187-6878?

There are 9 known substitutes for 6240-01-187-6878: 5940-00-143-4771, 5905-00-232-1848, 5999-00-437-6493 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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