The Lamp,incandescent, cataloged under National Stock Number 6240-00-990-8191, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Thomas Manufacturing Corp. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6240-00-990-8191 |
| Primary Part Number | 100A21-120V |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — No Item Name Available |
| Manufacturer | Thomas Manufacturing Corp |
| Status | CANCELLED |
| Bulb Style | A (ARBITRARY DESIGNATION) |
| Filament Heavy Duty Service Rating | NOT RATED |
| Emitted Light Characteristic | WHITE |
| Base Style | MEDIUM SCREW |
| Light Center Length | 3.875 INCHES NOMINAL IN |
| Light Output Rating | 1650.000 LUMENS NOMINAL SINGLE RATING |
| Average Life Rating in Hours | 750.0 |
| Bulb Light Transmission Characteristic | TRANSLUCENT |
| Current Rating for Which Designed | 0.833 AMPERES NOMINAL |
| Wattage Rating | 100.000 WATTS |
| Bulb Designator | A-21 |
| Burning Position | BASE DOWN TO HORIZONTAL |
| Filament Designation | CC-6 OR CC-8 |
| Rated Average Life | HOURS |
| Voltage Rating | 120.000 VOLTS NOMINAL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 100A21-120V | Thomas Manufacturing Corp (USA) |
| 100A21-120V-130V | Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA) |
| 100A21-120V | Lamp Industry for Use with Industry Designations and Abbreviations for Lamps |
| 100A21-120 | Marvel Lamp Co Inc (USA) |
| 100A21CL-120 | 21ST Century Enterprises Inc (USA) |
NSN 6240-00-990-8191 is a Lamp,incandescent, manufactured by Thomas Manufacturing Corp, classified under FSC 6240 (No Item Name Available). Status: cancelled.
NSN 6240-00-990-8191 has 5 cross-referenced part numbers: 100A21-120V (Thomas Manufacturing Corp), 100A21-120V-130V (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), 100A21-120V (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), 100A21-120 (Marvel Lamp Co Inc), 100A21CL-120 (21ST Century Enterprises Inc).
There is 1 known substitute for 6240-00-990-8191: 6240-00-143-7494. Verify interchangeability with system specifications before substitution.
Key specifications for 100A21-120V: Bulb Style: A (ARBITRARY DESIGNATION); Filament Heavy Duty Service Rating: NOT RATED; Overall Length: 5.250 INCHES MAXIMUM IN; Emitted Light Characteristic: WHITE. 18 total characteristics are documented in the Federal Logistics Information System.
NSN 6240-00-990-8191 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.