PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20B10C/CF/4M/SS/120VLamp,incandescent

Gte Products Corp Sylvania Miniature Lighting Div · NSN 6240-01-344-5443 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-344-5443 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-344-5443. Primary manufacturer part number: 20B10C/CF/4M/SS/120V.
Features
  • Lamp,incandescent — FSC 6240
  • Filament Designation: C,C-7A A
  • Bulb Style: F (FLAME)
  • Bulb Light Transmission Characteristic: TRANSLUCENT
  • Emitted Light Characteristic: IVORY
  • Voltage Rating: 120.000 VOLTS NOMINAL
  • Rated Average Life: HOURS
  • Base Style: CANDELABRA SCREW SKIRTED
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-344-5443, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Gte Products Corp Sylvania Miniature Lighting Div. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-344-5443
Primary Part Number20B10C/CF/4M/SS/120V
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerGte Products Corp Sylvania Miniature Lighting Div
StatusACTIVE
Filament DesignationC,C-7A A
Bulb StyleF (FLAME)
Bulb Light Transmission CharacteristicTRANSLUCENT
Emitted Light CharacteristicIVORY
Voltage Rating120.000 VOLTS NOMINAL
Rated Average LifeHOURS
Base StyleCANDELABRA SCREW SKIRTED
Current Rating for Which Designed0.167 AMPERES NOMINAL
Wattage Rating20.000 WATTS
Filament Heavy Duty Service RatingNOT RATED
Bulb DesignatorB-10
Light Output Rating160.000 LUMENS NOMINAL SINGLE RATING
Average Life Rating in Hours4000.0
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-264-1240AN320C3 INTERCHANGEABLE
Nut,plain,slotted,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-00-358-834441S104 INTERCHANGEABLE
Washer,key
Oshkosh Defense Llc
4820-01-007-05411350-3 INTERCHANGEABLE
Valve,safety Relief
Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division
4730-01-234-1774P-1-17-19 INTERCHANGEABLE
Flange,pipe
Bird-Johnson Propeller Company, Llc
1005-01-459-584613503 INTERCHANGEABLE
Stop Spring Shell
O F Mossberg & Sons Inc
6515-01-577-5129241.951 INTERCHANGEABLE
Bone Plate
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
20B10C/CF/4M/SS/120V PRIMARY Gte Products Corp Sylvania Miniature Lighting Div (USA)
13503 Gte Products Corp Sylvania Miniature Lighting Div (USA)
Related Parts
5310-00-264-1240INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
AN320C3
5310-00-358-8344INTERCHANGEABLE
WASHER,KEY
41S104
4820-01-007-0541INTERCHANGEABLE
VALVE,SAFETY RELIEF
1350-3
4730-01-234-1774INTERCHANGEABLE
FLANGE,PIPE
P-1-17-19
1005-01-459-5846INTERCHANGEABLE
STOP SPRING SHELL
13503
6515-01-577-5129INTERCHANGEABLE
BONE PLATE
241.951

Frequently Asked Questions

What is NSN 6240-01-344-5443?

NSN 6240-01-344-5443 is a Lamp,incandescent, manufactured by Gte Products Corp Sylvania Miniature Lighting Div, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-344-5443?

NSN 6240-01-344-5443 has 2 cross-referenced part numbers: 20B10C/CF/4M/SS/120V (Gte Products Corp Sylvania Miniature Lighting Div), 13503 (Gte Products Corp Sylvania Miniature Lighting Div).

What NSN replaces 6240-01-344-5443?

There are 6 known substitutes for 6240-01-344-5443: 5310-00-264-1240, 5310-00-358-8344, 4820-01-007-0541 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20B10C/CF/4M/SS/120V?

Key specifications for 20B10C/CF/4M/SS/120V: Filament Designation: C,C-7A A; Bulb Style: F (FLAME); Overall Length: 4.312 INCHES NOMINAL IN; Special Features: WATT-MISER. 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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