The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-159-5815, 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 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5961-01-159-5815 |
| Primary Part Number | LO3309 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 1000.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE AND 800.0 MAXIMUM REVERSE VOLTAGE, DC AND 1200.0 MAXIMUM NONREPETITIVE PEAK REVERSE VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 175.0 CELSIUS JUNCTION DEGC |
| Mounting Facility Quantity | 1 |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | DO-9 |
| Mounting Method | THREADED STUD(S) |
| Criticality Code Justification | ZZZY |
| Features Provided | HERMETICALLY SEALED CASE |
| Overall Width Across Flats | 1.443 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.750 INCHES IN |
| Current Rating Per Characteristic | 400.00 AMPERES MAXIMUM FORWARD CURRENT, TOTAL RMS AND 30.00 MILLIAMPERES MAXIMUM REPETITIVE PEAK REVERSE CURRENT |
| Material | SILICON SEMICONDUCTOR |
| Terminal Type and Quantity | 1 TAB, SOLDER LUG AND 1 THREADED STUD |
| Thread Series Designator | UNF |
| Reference Number Differentiating Characteristics | REFERENCE NUMBER DIFFERENTIATING MATERIAL WILL BE IN ACCORDANCE WITH NAVAL INVENTORY CONTROL POINT ACTIVITY HX QUALITY CONTROL. MANUFACTURING AND TESTING SPECIFICATIONS AVAILABLE AT THE DLA ICP |
| Electrode Internally-Electrically Connected to Case | CATHODE |
| 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 |
|---|---|
| LO3309 | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| Reference | Meaning |
|---|---|
| 113195-1 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5961-01-159-5815 is a Semiconductor Device,diode, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-159-5815 has 1 manufacturer part number on file: LO3309 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-540-5563. Verify interchangeability with system specifications before substitution.
Key specifications for LO3309: Voltage Rating in Volts Per Characteristic: 1000.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE AND 800.0 MAXIMUM REVERSE VOLTAGE, DC AND 1200.0 MAXIMUM NONREPETITIVE PEAK REVERSE VOLTAGE; Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC; Mounting Facility Quantity: 1; Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO-9. 15 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.