The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-903-0729, 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 Semitronics Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-00-903-0729 |
| Primary Part Number | 1N4979 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Semitronics Corp |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 75.0 MAXIMUM NOMINAL REGULATOR VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 175.0 CELSIUS AMBIENT AIR DEGC |
| Overall Diameter | 0.145 INCHES MAXIMUM IN |
| Terminal Length | 0.975 INCHES NOMINAL IN |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 20.00 MILLIAMPERES MAXIMUM MAXIMUM REVERSE SURGE CURRENT |
| Specification/standard Data | 80131-RELEASE5203 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| Material | SILICON SEMICONDUCTOR |
| Material | GLASS ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Power Rating Per Characteristic | 5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION |
| 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 |
|---|---|
| 1N4979 | Semitronics Corp (USA) |
| 1N4979 | Micro Uspd Inc (USA) |
| Reference | Meaning |
|---|---|
| 1N4979 | 5/9 Secondary reference Microsemi Corporation |
| 1N4979 | 5/9 Secondary reference U.S. Government activity |
| MIL-PRF-19500/356 | 4/1 Identification reference U.S. Government activity |
| 1N4979 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5961-00-903-0729 is a Semiconductor Device,diode, manufactured by Semitronics Corp, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-903-0729 has 2 manufacturer part numbers on file: 1N4979 (Semitronics Corp), 1N4979 (Micro Uspd Inc).
Key specifications for 1N4979: Voltage Rating in Volts Per Characteristic: 75.0 MAXIMUM NOMINAL REGULATOR VOLTAGE; Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS AMBIENT AIR DEGC; Overall Diameter: 0.145 INCHES MAXIMUM IN; Terminal Length: 0.975 INCHES NOMINAL IN. 12 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.