The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-197-2671, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-01-197-2671 |
| Primary Part Number | 2603938 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 0.700 INCHES MAXIMUM IN |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Mounting Hole Diameter | 0.375 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Body Length | 0.345 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 13.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 5 WIRE LEAD |
| 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 |
|---|---|
| 20447 | Torotel, Inc. Div Torotel Products, Inc. (USA) |
| 2603938 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 52153-2A | 5/2 Secondary reference U.S. Government activity |
NSN 5950-01-197-2671 is a Transformer,audio Frequency, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-197-2671 has 2 manufacturer part numbers on file: 20447 (Torotel, Inc. Div Torotel Products, Inc.), 2603938 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-555-3599, 5340-01-602-2673. Verify interchangeability with system specifications before substitution.
Key specifications for 2603938: Mounting Facility Quantity: 1 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 0.700 INCHES MAXIMUM IN; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP. 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.