The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-243-0711, 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 Powerex, Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 5961-00-243-0711 |
| Primary Part Number | 1N4051R |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Powerex, Inc. |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 500.0 MAXIMUM REVERSE VOLTAGE, PEAK |
| Maximum Operating Temp Per Measurement Point | 190.0 CELSIUS JUNCTION DEGC |
| Mounting Facility Quantity | 1 |
| Overall Diameter | 1.218 INCHES MAXIMUM IN |
| Mounting Method | THREADED STUD(S) |
| Features Provided | HERMETICALLY SEALED CASE |
| Overall Width Across Flats | 1.250 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.750 INCHES IN |
| Current Rating Per Characteristic | 5000.00 AMPERES MAXIMUM SOURCE CURRENT |
| Specification/standard Data | 80131-RELEASE4215 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| Material | SILICON SEMICONDUCTOR |
| Terminal Type and Quantity | 1 THREADED STUD AND 1 UNINSULATED WIRE LEAD W/TERMINAL LUG |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 1N4051R | Powerex, Inc. (USA) |
| 1N4051R | Edal Industries, Inc. Dba Edal Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| RELEASE4215 | 5/9 Secondary reference U.S. Government activity |
| 1N4051R | 5/9 Secondary reference Westinghouse Electric Corp Semiconductor Div |
| 1N4051R | 3/9 Design control — primary reference U.S. Government activity |
NSN 5961-00-243-0711 is a Semiconductor Device,diode, manufactured by Powerex, Inc., classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-243-0711 has 2 manufacturer part numbers on file: 1N4051R (Powerex, Inc.), 1N4051R (Edal Industries, Inc. Dba Edal Industries Inc).
6 possible matches (shared part number, not a government interchangeability claim): 5961-00-482-0785, 5961-00-497-4050, 5961-00-498-8463. Verify interchangeability with system specifications before substitution.
Key specifications for 1N4051R: Voltage Rating in Volts Per Characteristic: 500.0 MAXIMUM REVERSE VOLTAGE, PEAK; Maximum Operating Temp Per Measurement Point: 190.0 CELSIUS JUNCTION DEGC; Mounting Facility Quantity: 1; Overall Diameter: 1.218 INCHES MAXIMUM IN. 13 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.