The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-225-6672, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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 | 5950-01-225-6672 |
| Primary Part Number | 3-20270 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc. |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.370 INCHES MINIMUM AND 2.380 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Body Width | 3.000 INCHES MAXIMUM IN |
| Body Height | 3.000 INCHES MAXIMUM IN |
| Maximum Transformer Power Rating | 1060.0 WATTS SINGLE COMPONENT |
| Mounting Hole Diameter | 0.184 INCHES MINIMUM AND 0.191 INCHES MAXIMUM SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 2.4 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 36.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Winding Shielding Method | INTERNALLY SHIELDED SINGLE COMPONENT |
| Nominal Thread Size | 0.164 INCHES SINGLE GROUP IN |
| Body Length | 2.250 INCHES MAXIMUM IN |
| Winding Operating Current | 3.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 7.5 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.370 INCHES MINIMUM AND 2.380 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Terminal Type and Quantity | 10 TURRET |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5950-01-225-6672 is a Transformer,audio Frequency, manufactured by Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-225-6672 has 4 manufacturer part numbers on file: 826143-1 (Raytheon Company), 3-20270 (Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.), 826143-1 (Raytheon Company Div Corp), 826143-1 (Raytheon Company Dba Raytheon Co).
1 possible match (shared part number, not a government interchangeability claim): 2910-01-503-8058. Verify interchangeability with system specifications before substitution.
Key specifications for 3-20270: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.370 INCHES MINIMUM AND 2.380 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Mounting Method: THREADED STUD(S) SINGLE GROUP. 20 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.