The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-022-6259, 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 Microsemi Corp - Massachusetts. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5961-01-022-6259 |
| Primary Part Number | D-551-AE |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Microsemi Corp - Massachusetts |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 200.0 MAXIMUM REVERSE VOLTAGE, PEAK |
| Mounting Facility Quantity | 1 |
| Mounting Method | THREADED STUD(S) |
| Criticality Code Justification | FEAT |
| Overall Width Across Flats | 0.683 INCHES NOMINAL IN |
| Current Rating Per Characteristic | 40.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE |
| Material | SILICON SEMICONDUCTOR |
| Terminal Type and Quantity | 1 TAB, SOLDER LUG AND 1 THREADED STUD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 1583770-7 | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| D-551-AE PRIMARY | Microsemi Corp - Massachusetts (USA) |
| D0551AE | Microsemi Corp - Massachusetts (USA) |
| Reference | Meaning |
|---|---|
| 5961010226259 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| D551AE | 5/9 Secondary reference Fmc Technologies Inc Div Material Handling Solutions |
| 1583770-7 | 5/9 Secondary reference U.S. Government activity |
| D-551-AE | 5/9 Secondary reference Microsemi Corp-Colorado |
NSN 5961-01-022-6259 is a Semiconductor Device,diode, manufactured by Microsemi Corp - Massachusetts, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-022-6259 has 3 manufacturer part numbers on file: 1583770-7 (Honeywell International, Inc Div Aerospace-Tucson), D-551-AE (Microsemi Corp - Massachusetts), D0551AE (Microsemi Corp - Massachusetts).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-239-6902. Verify interchangeability with system specifications before substitution.
Key specifications for D-551-AE: Voltage Rating in Volts Per Characteristic: 200.0 MAXIMUM REVERSE VOLTAGE, PEAK; Mounting Facility Quantity: 1; Mounting Method: THREADED STUD(S); Criticality Code Justification: FEAT. 8 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.