The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-233-1227, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is The Boeing Company. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-01-233-1227 |
| Primary Part Number | HS5427-1937 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 0.370 INCHES NOMINAL IN |
| Mounting Method | TERMINAL SINGLE GROUP |
| Maximum Transformer Power Rating | 100.0 MILLIWATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 150.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Maximum Operating Temp | 105.0 CELSIUS DEGC |
| Body Length | 0.560 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 200.0 HERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Primary to Secondary Turn Ratio | 1 TO 2 SINGLE COMPONENT |
| Terminal Type and Quantity | 4 PIN |
| 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 |
|---|---|
| 101937 | Dbp Microwave Inc. Dba Dbp Microwave Inc. (USA) |
| HS5427-1937 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| HS5427-1937 | 3/9 Design control — primary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5950-01-233-1227 is a Transformer,audio Frequency, manufactured by The Boeing Company, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-233-1227 has 2 manufacturer part numbers on file: 101937 (Dbp Microwave Inc. Dba Dbp Microwave Inc.), HS5427-1937 (The Boeing Company).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-438-0111. Verify interchangeability with system specifications before substitution.
Key specifications for HS5427-1937: Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 0.370 INCHES NOMINAL IN; Mounting Method: TERMINAL SINGLE GROUP; Maximum Transformer Power Rating: 100.0 MILLIWATTS SINGLE COMPONENT. 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.