The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-168-4037, 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 Raytheon E-Systems, Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-168-4037 |
| Primary Part Number | 303-0142-020 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Raytheon E-Systems, Inc |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 18.0 MAXIMUM NOMINAL REGULATOR VOLTAGE |
| Overall Diameter | 0.125 INCHES MAXIMUM IN |
| Precious Material | SILVER |
| Terminal Length | 1.000 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 111.00 MILLIAMPERES MAXIMUM VOLTAGE REGULATOR DIODE CURRENT |
| Voltage Tolerance in Percent | -10.0 TO 10.0 |
| Function for Which Designed | ZENER DIODE |
| Precious Material and Location | TERMINAL SURFACE SILVER |
| Material | SILICON SEMICONDUCTOR |
| Material | GLASS ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Power Rating Per Characteristic | 2.0 WATTS MAXIMUM TOTAL POWER 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 |
|---|---|
| 303-0142-020 | Raytheon E-Systems, Inc (USA) |
| Reference | Meaning |
|---|---|
| LMZ18A | 3/9 Design control — primary reference Semicon Components Inc |
NSN 5961-01-168-4037 is a Semiconductor Device,diode, manufactured by Raytheon E-Systems, Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-168-4037 has 1 manufacturer part number on file: 303-0142-020 (Raytheon E-Systems, Inc).
Key specifications for 303-0142-020: Voltage Rating in Volts Per Characteristic: 18.0 MAXIMUM NOMINAL REGULATOR VOLTAGE; Overall Diameter: 0.125 INCHES MAXIMUM IN; Precious Material: SILVER; Terminal Length: 1.000 INCHES MINIMUM IN. 14 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.