The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-645-5226, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lucent Technologies Inc Corporate Headquarters. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-645-5226 |
| Primary Part Number | GA51115 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lucent Technologies Inc Corporate Headquarters |
| Status | ACTIVE |
| Transformer Function | LINE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Body Width | 0.906 INCHES NOMINAL IN |
| Body Height | 2.000 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 46.0 DECIBELS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Impedance Rating in Ohms | 280.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Shielding Method | INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUP IN |
| Body Length | 1.375 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 12.0 HERTZ MINIMUM AND 68.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Primary to Secondary Turn Ratio | 1 TO 1-7/16 SINGLE COMPONENT |
| Terminal Type and Quantity | 6 WIRE HOOK |
| 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 |
|---|---|
| GA51115 | Lucent Technologies Inc Corporate Headquarters (USA) |
| K5792 | Keytronics, Inc. Div Api Technologies Corp- Magnetics (USA) |
| 148001 | Electronic Transformer Corp Div Electronic Transformer Corporation (USA) |
| A8049 | Autodyne Manufacturing Co Inc (USA) |
| Reference | Meaning |
|---|---|
| GA51115 | 5/9 Secondary reference American Telephone and Telegraph Co |
| GA51115 | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
| SC-C-67306 | 3/2 Design control — primary reference U.S. Government activity |
| GA51115 | 5/9 Secondary reference Siemens Water Technologies Corp. Div Wallace & Tiernan Products |
| GA51115 | 5/9 Secondary reference At and T Corp |
NSN 5950-00-645-5226 is a Transformer,audio Frequency, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-645-5226 has 4 manufacturer part numbers on file: GA51115 (Lucent Technologies Inc Corporate Headquarters), K5792 (Keytronics, Inc. Div Api Technologies Corp- Magnetics), 148001 (Electronic Transformer Corp Div Electronic Transformer Corporation), A8049 (Autodyne Manufacturing Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-276-2123. Verify interchangeability with system specifications before substitution.
Key specifications for GA51115: Transformer Function: LINE; Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Mounting Method: THREADED STUD(S) SINGLE GROUP. 19 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.