The Transformer,power, cataloged under National Stock Number 5950-01-061-9250, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-01-061-9250 |
| Primary Part Number | AT709-00-301 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 1.125 INCHES NOMINAL IN |
| Body Height | 1.188 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.188 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Body Length | 2.125 INCHES NOMINAL IN |
| Winding Operating Current | 3.2 MILLIAMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 60.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT |
| Winding Operating Voltage | 115.00 AC VOLTS NOMINAL AND 440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Voltage | 24.00 AC VOLTS NOMINAL AND 40.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Terminal Type and Quantity | 6 TAB, SOLDER LUG |
| 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 |
|---|---|
| AT709-00-301 | Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc (USA) |
| Reference | Meaning |
|---|---|
| 70490-2A | 5/9 Secondary reference Square D Co Electromagnetic Industries Div |
| 70490 | 5/9 Secondary reference Square D Co Pinellas Plant |
| 70490-2A | 3/9 Design control — primary reference Square D Co Pinellas Plant |
| 70490 | 5/9 Secondary reference Square D Co Electromagnetic Industries Div |
NSN 5950-01-061-9250 is a Transformer,power, manufactured by Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-061-9250 has 1 manufacturer part number on file: AT709-00-301 (Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-185-6748, 5315-01-599-5734, 5310-01-642-9746. Verify interchangeability with system specifications before substitution.
Key specifications for AT709-00-301: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP. 16 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.