The Transformer,power, cataloged under National Stock Number 5950-01-223-9126, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Freed Transformer Co. Government technical data includes 10 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 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 | 5950-01-223-9126 |
| Primary Part Number | 43289 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Freed Transformer Co |
| Status | ACTIVE |
| Transformer Winding Connection Type | WYE-WYE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | OPEN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | THREE PHASE TO TWO PHASE SINGLE COMPONENT |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Terminal Type and Quantity | 7 SOLDER STUD |
| 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 |
|---|---|
| 43289 PRIMARY | Freed Transformer Co (USA) |
NSN 5950-01-223-9126 is a Transformer,power, manufactured by Freed Transformer Co, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-223-9126 has 1 manufacturer part number on file: 43289 (Freed Transformer Co).
2 possible matches (shared part number, not a government interchangeability claim): 2935-01-284-1944, 5950-01-293-4024. Verify interchangeability with system specifications before substitution.
Key specifications for 43289: Overall Height: 3.125 INCHES NOMINAL IN; Transformer Winding Connection Type: WYE-WYE; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: OPEN. 10 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.