The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-081-2145, 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 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-081-2145 |
| Primary Part Number | 666163-365 |
| 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 |
| Overall Diameter | 0.417 INCHES MINIMUM AND 0.427 INCHES MAXIMUM IN |
| Mounting Method | TAB SINGLE GROUP |
| Inductance Rating | 0.49 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Adjustment Method and Quantity | 1 ADJUSTABLE CORE SINGLE COMPONENT |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 0.422 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Rating Method | ELECTRICAL SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Mounting Tab Width | 0.058 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Frequency Rating | 25.0 MEGAHERTZ NOMINAL 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 |
|---|---|
| 2533-65 | American Trans-Coil Corp (USA) |
| 666163-365 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA) |
| 809000-382 | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA) |
| Reference | Meaning |
|---|---|
| 666163-365 | 5/9 Secondary reference Radionics Technologies Inc |
NSN 5950-00-081-2145 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 5950-00-081-2145 has 3 manufacturer part numbers on file: 2533-65 (American Trans-Coil Corp), 666163-365 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 809000-382 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5325-00-282-0723, 6625-00-923-8974. Verify interchangeability with system specifications before substitution.
Key specifications for 666163-365: Inclosure Type: FULLY INCLOSED; Overall Diameter: 0.417 INCHES MINIMUM AND 0.427 INCHES MAXIMUM IN; Mounting Method: TAB SINGLE GROUP; Inductance Rating: 0.49 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 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.