The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-006-3665, 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 Siliconix Incorporated Div Siliconix. Government technical data includes 3 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-006-3665 |
| Primary Part Number | 1N1187A |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Siliconix Incorporated Div Siliconix |
| Status | ACTIVE |
| Overall Diameter | 0.667 INCHES NOMINAL IN |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 1N1187A PRIMARY | Siliconix Incorporated Div Siliconix (USA) |
| 1N1187A | Microsemi Corp - Massachusetts (USA) |
| Reference | Meaning |
|---|---|
| 1N1187A | 5/9 Secondary reference Powerex, Inc. |
| DI19-03 | 7/2 Vendor item drawing reference Eldec Aerospace Corp |
| 1N1187A | 5/9 Secondary reference Westinghouse Electric Corp Semiconductor Div |
| 1N1187A | 3/9 Design control — primary reference Harris Corp Findlay Opns |
| 1N1187A | 5/9 Secondary reference U.S. Government activity |
| 1N1187A | 5/9 Secondary reference Vishay Intertechnology, Inc. |
| 1N1187A | 5/9 Secondary reference Middleton Enterprises, Inc Div Aero Tube & Connector Div. |
| 1N1187A | 5/9 Secondary reference Renesas Electronics America Inc |
| 1N1187A | 5/9 Secondary reference Freescale Semiconductor, Inc. |
NSN 5961-01-006-3665 is a Semiconductor Device,diode, manufactured by Siliconix Incorporated Div Siliconix, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-006-3665 has 2 manufacturer part numbers on file: 1N1187A (Siliconix Incorporated Div Siliconix), 1N1187A (Microsemi Corp - Massachusetts).
Key specifications for 1N1187A: Overall Diameter: 0.667 INCHES NOMINAL IN; Overall Length: 1.453 INCHES NOMINAL IN; Material: SILICON SEMICONDUCTOR; Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 1 THREADED STUD. 3 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.