The Transformer,power Autotransforme, cataloged under National Stock Number 5950-01-137-0055, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Soderberg Manufacturing Company, Inc. Dba Soderberg Manufacturing. The record lists 7 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Transformer,power Autotransforme |
| FSC / FSG | 5950 — Coils and Transformers (FSG 59) |
| Manufacturers | Keytronics, Inc. Div Api Technologies Corp- Magnetics (CAGE 51181); Precision Electronics, Inc (CAGE 13483); Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc (CAGE 04620); Soderberg Manufacturing Company, Inc. Dba Soderberg Manufacturing (CAGE 78366); Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc (CAGE 56662) |
| Parameter | Value |
|---|---|
| NSN | 5950-01-137-0055 |
| Primary Part Number | S1878-1 |
| Item Name | Transformer,power Autotransforme |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Soderberg Manufacturing Company, Inc. Dba Soderberg Manufacturing |
| Status | ACTIVE |
| 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 |
|---|---|
| C10565-1 | Keytronics, Inc. Div Api Technologies Corp- Magnetics (USA) |
| PEI 7731 | Precision Electronics, Inc (USA) |
| 4T605 | Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc (USA) |
| S1878-1 PRIMARY | Soderberg Manufacturing Company, Inc. Dba Soderberg Manufacturing (USA) |
| FS1370-055 | Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc (USA) |
| C10565-2 | Standard Magnetic Corporation (USA) |
| 43193-2 | Coast/advanced Chip Magnetics, Inc. (USA) |
| Reference | Meaning |
|---|---|
| C10565-2 | 5/2 Secondary reference U.S. Government activity |
NSN 5950-01-137-0055 is a Transformer,power Autotransforme, manufactured by Soderberg Manufacturing Company, Inc. Dba Soderberg Manufacturing, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-137-0055 has 7 manufacturer part numbers on file: C10565-1 (Keytronics, Inc. Div Api Technologies Corp- Magnetics), PEI 7731 (Precision Electronics, Inc), 4T605 (Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc), S1878-1 (Soderberg Manufacturing Company, Inc. Dba Soderberg Manufacturing), FS1370-055 (Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc) and 2 more.
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.