The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-254-6166, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5961-01-254-6166 |
| Primary Part Number | 9999-7225-001 |
| 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 | 48.0 MAXIMUM NONREPETITIVE PEAK REVERSE VOLTAGE AND 40.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE AND 40.0 MAXIMUM REVERSE VOLTAGE, INSTANTANEOUS |
| Maximum Operating Temp Per Measurement Point | 150.0 CELSIUS JUNCTION DEGC |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | DO-35 |
| Overall Diameter | 0.090 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES MAXIMUM IN |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Capacitance Rating in Picofarads | 70.0 NOMINAL |
| Current Rating Per Characteristic | 5.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT |
| Material | SILICON SEMICONDUCTOR |
| Material | GLASS ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9999-7225-001 PRIMARY | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
| Reference | Meaning |
|---|---|
| MBR-040 | 5/1 Secondary reference Freescale Semiconductor, Inc. |
| 9999-7225 | 5/9 Secondary reference Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems |
NSN 5961-01-254-6166 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 5961-01-254-6166 has 1 manufacturer part number on file: 9999-7225-001 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-277-8922. Verify interchangeability with system specifications before substitution.
Key specifications for 9999-7225-001: Voltage Rating in Volts Per Characteristic: 48.0 MAXIMUM NONREPETITIVE PEAK REVERSE VOLTAGE AND 40.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE AND 40.0 MAXIMUM REVERSE VOLTAGE, INSTANTANEOUS; Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC; Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO-35; Overall Diameter: 0.090 INCHES MAXIMUM 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.
NSN 5961-01-254-6166 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.