The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-978-8081, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Astec America Inc.. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-978-8081 |
| Primary Part Number | 15964 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Astec America Inc. |
| Status | ACTIVE |
| Transformer Function | INPUT |
| Mounting Facility Quantity | 1 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Mounting Method | CORE AND THREADED STUD(S) SINGLE GROUP |
| Body Width | 0.780 INCHES NOMINAL IN |
| Body Height | 1.180 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 0.5 DECIBELS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 6000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Impedance Rating in Ohms | 11000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Body Length | 0.780 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Thread Quantity Per Inch | 40 SINGLE GROUP |
| Terminal Type and Quantity | 4 PIN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| 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 |
|---|---|
| 15964 PRIMARY | Astec America Inc. (USA) |
| Reference | Meaning |
|---|---|
| 8502-10ISSUEA | 5/9 Secondary reference U.S. Government activity |
NSN 5950-00-978-8081 is a Transformer,audio Frequency, manufactured by Astec America Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-978-8081 has 1 manufacturer part number on file: 15964 (Astec America Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5133-01-399-1218, 5120-01-597-4806, 8145-01-601-7950. Verify interchangeability with system specifications before substitution.
Key specifications for 15964: Transformer Function: INPUT; Mounting Facility Quantity: 1 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Mounting Method: CORE AND THREADED STUD(S) SINGLE GROUP. 17 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.