The Transformer,power, cataloged under National Stock Number 5950-01-369-7573, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division. Government technical data includes 19 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. 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 | 5950-01-369-7573 |
| Primary Part Number | 3907 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 ALL GROUPINGS |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 4.000 INCHES NOMINAL ALL MOUNTING FACILITIES ALL CENTER GROUPINGS IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | UNTHREADED HOLE(S) ALL GROUPINGS |
| Body Width | 4.500 INCHES NOMINAL IN |
| Body Height | 1.750 INCHES MAXIMUM IN |
| Mounting Hole Diameter | 0.187 INCHES MINIMUM AND 0.196 INCHES MAXIMUM SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 4.000 INCHES NOMINAL ALL MOUNTING FACILITIES ALL CENTER GROUPINGS IN |
| Specification/standard Data | 09004-116382 MANUFACTURERS SOURCE CONTROL |
| Maximum Operating Temp | 75.0 CELSIUS DEGC |
| Body Length | 4.500 INCHES NOMINAL IN |
| Winding Operating Current | 10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 60.0 HERTZ NOMINAL ALL COMPONENTS |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 4.000 INCHES NOMINAL ALL MOUNTING FACILITIES ALL CENTER GROUPINGS IN |
| Test Data Document | 09004-116382 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Terminal Type and Quantity | 4 WIRE LEAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5950-01-369-7573 is a Transformer,power, manufactured by Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-369-7573 has 2 manufacturer part numbers on file: 3907 (Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division), 116382 (Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit).
3 possible matches (shared part number, not a government interchangeability claim): 5330-01-438-6685, 6220-01-670-3973, 6110-01-690-4980. Verify interchangeability with system specifications before substitution.
Key specifications for 3907: Mounting Facility Quantity: 4 ALL GROUPINGS; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 4.000 INCHES NOMINAL ALL MOUNTING FACILITIES ALL CENTER GROUPINGS IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 19 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.