The Transistor, cataloged under National Stock Number 5961-00-416-9681, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Texas Instruments Incorporated. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-00-416-9681 |
| Primary Part Number | 2N491 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — No Item Name Available |
| Manufacturer | Texas Instruments Incorporated |
| Status | ACTIVE |
| Overall Diameter | 0.370 INCHES NOMINAL IN |
| Terminal Type and Quantity | 3 UNINSULATED WIRE LEAD |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Internal Junction Configuration | PN |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Power Rating Per Characteristic | 450.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION |
| Voltage Rating in Volts Per Characteristic | 3.0 MINIMUM BASE SUPPLY VOLTAGE |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 70.0 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC |
| Terminal Circle Diameter | 0.200 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 10-22384-2 | The Boeing Company Div Defense (USA) |
| 2N491 | General Electric Co Semi-Conductor Products Dept (USA) |
| 2N491 PRIMARY | Texas Instruments Incorporated (USA) |
NSN 5961-00-416-9681 is a Transistor, manufactured by Texas Instruments Incorporated, classified under FSC 5961 (No Item Name Available). Status: active.
NSN 5961-00-416-9681 has 3 cross-referenced part numbers: 10-22384-2 (The Boeing Company Div Defense), 2N491 (General Electric Co Semi-Conductor Products Dept), 2N491 (Texas Instruments Incorporated).
There are 3 known substitutes for 5961-00-416-9681: 5961-00-617-3873, 5961-00-808-8398, 5961-00-926-2569. Verify interchangeability with system specifications before substitution.
Key specifications for 2N491: Overall Diameter: 0.370 INCHES NOMINAL IN; Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD; Terminal Length: 1.500 INCHES NOMINAL IN; Internal Junction Configuration: PN. 13 total characteristics are documented in the Federal Logistics Information System.