The Reactor-Transformer, cataloged under National Stock Number 5950-00-900-0658, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Keytronics, Inc. Div Api Technologies Corp- Magnetics. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Reactor-Transformer |
| FSC / FSG | 5950 — Coils and Transformers (FSG 59) |
| Manufacturers | Keytronics, Inc. Div Api Technologies Corp- Magnetics (CAGE 51181) |
| Parameter | Value |
|---|---|
| NSN | 5950-00-900-0658 |
| Primary Part Number | M509 |
| Item Name | Reactor-Transformer |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Keytronics, Inc. Div Api Technologies Corp- Magnetics |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| M509 PRIMARY | Keytronics, Inc. Div Api Technologies Corp- Magnetics (USA) |
| M509A PRIMARY | Keytronics, Inc. Div Api Technologies Corp- Magnetics (USA) |
| Reference | Meaning |
|---|---|
| FS-5331-P | 5/9 Secondary reference U.S. Government activity |
| 517-9000-156 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5950-00-900-0658 is a Reactor-Transformer, manufactured by Keytronics, Inc. Div Api Technologies Corp- Magnetics, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-900-0658 has 2 manufacturer part numbers on file: M509 (Keytronics, Inc. Div Api Technologies Corp- Magnetics), M509A (Keytronics, Inc. Div Api Technologies Corp- Magnetics).
1 possible match (shared part number, not a government interchangeability claim): 5945-01-537-2486. Verify interchangeability with system specifications before substitution.
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.