The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-156-7145, 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 Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-156-7145 |
| Primary Part Number | 9999-7220 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 400.0 MAXIMUM REVERSE VOLTAGE, DC AND 1.5 MAXIMUM ON VOLTAGE, FORWARD VOLTAGE DROP, DC |
| Maximum Operating Temp Per Measurement Point | 150.0 CELSIUS JUNCTION DEGC |
| Overall Diameter | 0.090 INCHES NOMINAL IN |
| Terminal Length | 1.000 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 10.00 MICROAMPERES MAXIMUM REVERSE CURRENT, DC |
| Function for Which Designed | SWITCHING |
| Material | SILICON SEMICONDUCTOR |
| Material | GLASS ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Power Rating Per Characteristic | 3.0 WATTS MAXIMUM TOTAL DEVICE 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 |
|---|---|
| 9999-7220 | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
| Reference | Meaning |
|---|---|
| DSR3400X | 3/9 Design control — primary reference Trw Electronics and Defense Sector Rf Devices |
NSN 5961-01-156-7145 is a Semiconductor Device,diode, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-156-7145 has 1 manufacturer part number on file: 9999-7220 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).
2 possible matches (shared part number, not a government interchangeability claim): 5961-01-269-3118, 5961-01-291-3216. Verify interchangeability with system specifications before substitution.
Key specifications for 9999-7220: Voltage Rating in Volts Per Characteristic: 400.0 MAXIMUM REVERSE VOLTAGE, DC AND 1.5 MAXIMUM ON VOLTAGE, FORWARD VOLTAGE DROP, DC; Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC; Overall Diameter: 0.090 INCHES NOMINAL IN; Terminal Length: 1.000 INCHES MINIMUM 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.