The Transistor, cataloged under National Stock Number 5961-00-520-4534, 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 Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5961-00-520-4534 |
| Primary Part Number | 3100109-003-1 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems |
| Status | ACTIVE |
| Overall Diameter | 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Terminal Type and Quantity | 4 UNINSULATED WIRE LEAD |
| Electrode Internally-Electrically Connected to Case | COLLECTOR |
| 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 |
|---|---|
| 3100109-003-1 | Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| U2T101 | 3/9 Design control — primary reference Api Electronics, Inc. Dba Api Technologies Corp Div Api Technologies - Spectrum Microwave |
| U2T101 | 5/9 Secondary reference Micro Uspd Inc |
NSN 5961-00-520-4534 is a Transistor, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-520-4534 has 1 manufacturer part number on file: 3100109-003-1 (Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems).
2 possible matches (shared part number, not a government interchangeability claim): 5961-00-767-1420, 5961-01-003-0576. Verify interchangeability with system specifications before substitution.
Key specifications for 3100109-003-1: Overall Height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Overall Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN; Semiconductor Material: SILICON; Internal Configuration: JUNCTION CONTACT. 6 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.