The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-646-3309, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ge Aviation Systems Llc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-646-3309 |
| Primary Part Number | 72843-01 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 0.906 INCHES MAXIMUM IN |
| Body Height | 1.344 INCHES MAXIMUM IN |
| Maximum Transformer Power Rating | 0.8 DECIBELS SINGLE COMPONENT |
| Mounting Hole Diameter | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 500.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Distance Between Mounting Facility Centers | 1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Body Length | 1.141 INCHES MAXIMUM IN |
| Winding Operating Current | 1.3 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT |
| Primary to Secondary Turn Ratio | 1 TO 1-1/10 SINGLE COMPONENT |
| Terminal Type and Quantity | 5 TAB, SOLDER LUG |
| 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 |
|---|---|
| 72843-01 | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 72843 | 5/9 Secondary reference Ge Aviation Systems Llc |
| 72843 | 3/9 Design control — primary reference Lucas Aerospace Power Equipment Corporation |
| 72843 | C/1 Advisory reference — outside the item-of-supply concept Safran Power Usa Llc |
NSN 5950-00-646-3309 is a Transformer,audio Frequency, manufactured by Ge Aviation Systems Llc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-646-3309 has 1 manufacturer part number on file: 72843-01 (Ge Aviation Systems Llc).
1 possible match (shared part number, not a government interchangeability claim): 5360-00-854-5570. Verify interchangeability with system specifications before substitution.
Key specifications for 72843-01: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP; Body Width: 0.906 INCHES MAXIMUM IN. 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.