The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-978-8722, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Keysight Technologies Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5950-00-978-8722 |
| Primary Part Number | 9120-0085 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Transformer Function | INPUT |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 0.500 INCHES NOMINAL IN |
| Mounting Method | TERMINAL SINGLE GROUP |
| Maximum Transformer Power Rating | 300.0 MILLIWATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 15000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 15000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Body Length | 0.500 INCHES NOMINAL IN |
| Winding Operating Current | 1.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 300.0 HERTZ MINIMUM AND 10.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Terminal Type and Quantity | 6 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 |
|---|---|
| 9120-0085 | Keysight Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 9120-0085 | 5/9 Secondary reference Keysight Technologies, Inc. |
| 9120-0085 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| A15289-001 | 7/2 Vendor item drawing reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| UM35M | 3/9 Design control — primary reference Microtran Co Inc |
NSN 5950-00-978-8722 is a Transformer,audio Frequency, manufactured by Keysight Technologies Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-978-8722 has 1 manufacturer part number on file: 9120-0085 (Keysight Technologies Inc).
1 possible match (shared part number, not a government interchangeability claim): 1660-01-368-0157. Verify interchangeability with system specifications before substitution.
Key specifications for 9120-0085: Transformer Function: INPUT; Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 0.500 INCHES NOMINAL IN; Mounting Method: TERMINAL SINGLE GROUP. 13 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.