The Reactor, cataloged under National Stock Number 5950-01-432-9137, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-01-432-9137 |
| Primary Part Number | FTC 5434 |
| Item Name | Reactor |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | OPEN |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Inductance Rating | 186.00 MICROHENRIES MINIMUM AND 341.00 MICROHENRIES MAXIMUM SINGLE COMPONENT ALL WINDING |
| Inductance Rating | 186.00 MICROHENRIES MINIMUM AND 341.00 MICROHENRIES MAXIMUM SINGLE COMPONENT FIRST WINDING |
| Body Width | 1.280 INCHES MAXIMUM IN |
| Body Height | 0.658 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Body Length | 1.280 INCHES MAXIMUM IN |
| Winding Operating Current | 0.7 AMPERES AC NOMINAL SINGLE COMPONENT FOURTH WINDING |
| Winding Operating Current | 0.7 AMPERES AC NOMINAL SINGLE COMPONENT THIRD WINDING |
| Winding Operating Current | 0.75 AMPERES AC NOMINAL SINGLE COMPONENT SECOND WINDING |
| Winding Operating Current | 1.2 AMPERES AC NOMINAL SINGLE COMPONENT FIRST WINDING |
| Rating Method | ELECTRICAL SINGLE COMPONENT ALL WINDING |
| DC Resistance Rating in Ohms | 0.140 SINGLE COMPONENT FIRST WINDING |
| DC Resistance Rating in Ohms | 0.180 SINGLE COMPONENT SECOND WINDING |
| DC Resistance Rating in Ohms | 0.220 SINGLE COMPONENT FOURTH WINDING |
| DC Resistance Rating in Ohms | 0.220 SINGLE COMPONENT THIRD WINDING |
| Reliability Indicator | NOT ESTABLISHED |
| Winding Quantity | 4 SINGLE COMPONENT |
| Terminal Type and Quantity | 8 WIRE LEAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FTC 5434 | Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division (USA) |
| Reference | Meaning |
|---|---|
| 202618-1 | 3/9 Design control — primary reference Transistor Devices Inc Florida Div |
NSN 5950-01-432-9137 is a Reactor, manufactured by Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-432-9137 has 1 manufacturer part number on file: FTC 5434 (Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-458-7672. Verify interchangeability with system specifications before substitution.
Key specifications for FTC 5434: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: OPEN; Mounting Method: THREADED HOLE(S) SINGLE GROUP; Inductance Rating: 186.00 MICROHENRIES MINIMUM AND 341.00 MICROHENRIES MAXIMUM SINGLE COMPONENT ALL WINDING. 22 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.