The Transistor, cataloged under National Stock Number 5961-01-156-7899, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-156-7899 |
| Primary Part Number | IRF9131 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | -60.0 MAXIMUM DRAIN TO SOURCE VOLTAGE |
| Mounting Facility Quantity | 2 |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | TO-3 |
| Mounting Method | UNTHREADED HOLE(S) |
| Semiconductor Material | SILICON |
| Internal Configuration | FIELD EFFECT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | -8.00 AMPERES MAXIMUM DRAIN CURRENT |
| Terminal Type and Quantity | 2 PIN AND 1 CASE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9999-5033 | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
| IRF9131 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| IRF9131 | 3/9 Design control — primary reference U.S. Government activity |
| 47A529818P3 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Aerostructures |
NSN 5961-01-156-7899 is a Transistor, manufactured by Sae International Dba Sae International, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-156-7899 has 2 manufacturer part numbers on file: 9999-5033 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems), IRF9131 (Sae International Dba Sae International).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-274-5232. Verify interchangeability with system specifications before substitution.
Key specifications for IRF9131: Overall Height: 0.450 INCHES MAXIMUM IN; Voltage Rating in Volts Per Characteristic: -60.0 MAXIMUM DRAIN TO SOURCE VOLTAGE; Mounting Facility Quantity: 2; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-3. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.