The Lamp,fluorescent, cataloged under National Stock Number 6240-00-781-0790, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Lamp Industry for Use with Industry Designations and Abbreviations for Lamps. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-00-781-0790 |
| Primary Part Number | F40B |
| Item Name | Lamp,fluorescent |
| FSC / FSG | 6240 / 62 — No Item Name Available |
| Manufacturer | Lamp Industry for Use with Industry Designations and Abbreviations for Lamps |
| Status | ACTIVE |
| Bulb Designator | T-12 |
| Emitted Light Characteristic | BLUE |
| Base Style | MEDIUM BIPIN (FLUORESCENT) |
| Wattage Rating | 40.000 WATTS |
| Bulb Style | T (TUBULAR) |
| Rated Average Life | HOURS |
| Average Life Rating in Hours | 15500.0 |
| Starting Characteristic | PREHEAT AND RAPID |
| Terminal Type and Quantity | 2 PIN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| F40B | General Electric Company (USA) |
| F40B PRIMARY | Lamp Industry for Use with Industry Designations and Abbreviations for Lamps |
| F40B | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| F40B | Duro-Test Corp (USA) |
| F40B | Duro-Test Lighting (USA) |
| F40B | Arc Ray Electric Corp (USA) |
| F40B | Westinghouse Electric Corp (USA) |
NSN 6240-00-781-0790 is a Lamp,fluorescent, manufactured by Lamp Industry for Use with Industry Designations and Abbreviations for Lamps, classified under FSC 6240 (No Item Name Available). Status: active.
NSN 6240-00-781-0790 has 7 cross-referenced part numbers: F40B (General Electric Company), F40B (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), F40B (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), F40B (Duro-Test Corp), F40B (Duro-Test Lighting) and 2 more.
There are 2 known substitutes for 6240-00-781-0790: 5120-00-288-6514, 5120-01-335-0731. Verify interchangeability with system specifications before substitution.
Key specifications for F40B: Bulb Designator: T-12; Emitted Light Characteristic: BLUE; Base Style: MEDIUM BIPIN (FLUORESCENT); Wattage Rating: 40.000 WATTS. 11 total characteristics are documented in the Federal Logistics Information System.