The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-121-9837, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc.. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 — Coils and Transformers (FSG 59) |
| Manufacturers | Magnetika (CAGE 02640); Behlman Electronics, Inc (CAGE 12868); Bae Systems Information and Electronic Systems Integration Inc. (CAGE 0D0D0); Standex Electronics, Inc. (CAGE 10581) |
| Parameter | Value |
|---|---|
| NSN | 5950-00-121-9837 |
| Primary Part Number | C504000125 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| 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 |
|---|---|
| TW62406 | Magnetika (USA) |
| T845 | Behlman Electronics, Inc (USA) |
| C504000125 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| 10101 | Standex Electronics, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 73352 | 5/2 Secondary reference U.S. Government activity |
| C504000125 | 5/9 Secondary reference U.S. Government activity |
NSN 5950-00-121-9837 is a Transformer,audio Frequency, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-121-9837 has 4 manufacturer part numbers on file: TW62406 (Magnetika), T845 (Behlman Electronics, Inc), C504000125 (Bae Systems Information and Electronic Systems Integration Inc.), 10101 (Standex Electronics, Inc.).
5 possible matches (shared part number, not a government interchangeability claim): 6685-00-229-7141, 4710-00-394-8508, 5950-00-917-1832. 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.