The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-918-0474, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-918-0474 |
| Primary Part Number | 666231-140 |
| Item Name | Transformer,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 0.422 INCHES NOMINAL IN |
| Mounting Method | TAB SINGLE GROUP |
| Inductance Rating | 1.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Adjustment Method and Quantity | 1 ADJUSTABLE CUP SINGLE COMPONENT |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Body Length | 0.490 INCHES MAXIMUM IN |
| Rating Method | ELECTRICAL SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Mounting Tab Width | 0.060 INCHES NOMINAL IN |
| Frequency Rating | 250.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 4 TURRET |
| 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 |
|---|---|
| 2574-40 | American Trans-Coil Corp (USA) |
| 666231-140 | Autodyne Manufacturing Co Inc (USA) |
| 666231-140 | Aimtron Systems, Llc (USA) |
| 666231-140 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA) |
| 809000-432 | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA) |
| Reference | Meaning |
|---|---|
| MTC 666231-140 | 5/9 Secondary reference Morley Transformer Co Inc |
NSN 5950-00-918-0474 is a Transformer,radio Frequency, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-918-0474 has 5 manufacturer part numbers on file: 2574-40 (American Trans-Coil Corp), 666231-140 (Autodyne Manufacturing Co Inc), 666231-140 (Aimtron Systems, Llc), 666231-140 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 809000-432 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc).
Key specifications for 666231-140: Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 0.422 INCHES NOMINAL IN; Mounting Method: TAB SINGLE GROUP; Inductance Rating: 1.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE SECONDARY. 14 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.