The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-055-4657, 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 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. 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 | 5950-01-055-4657 |
| Primary Part Number | 161721-01 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | TERMINAL SINGLE GROUP |
| Body Width | 0.405 INCHES MAXIMUM IN |
| Body Height | 0.468 INCHES MAXIMUM IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Winding Shielding Method | EXTERNAL INCLOSURE SINGLE COMPONENT |
| Features Provided | TINNED WIRE LEADS |
| Maximum Operating Temp | 130.0 CELSIUS DEGC |
| Body Length | 0.468 INCHES MAXIMUM IN |
| Winding Operating Current | 40.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM 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 |
|---|---|
| 161721-01 PRIMARY | Ge Aviation Systems Llc (USA) |
NSN 5950-01-055-4657 is a Transformer,audio Frequency, manufactured by Ge Aviation Systems Llc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-055-4657 has 1 manufacturer part number on file: 161721-01 (Ge Aviation Systems Llc).
1 possible match (shared part number, not a government interchangeability claim): 2990-01-101-5482. Verify interchangeability with system specifications before substitution.
Key specifications for 161721-01: Inclosure Type: FULLY INCLOSED; Mounting Method: TERMINAL SINGLE GROUP; Body Width: 0.405 INCHES MAXIMUM IN; Body Height: 0.468 INCHES MAXIMUM IN. 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.