The Transformer,power Autotransforme, cataloged under National Stock Number 5950-00-988-0345, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Coast/advanced Chip Magnetics, Inc.. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-988-0345 |
| Primary Part Number | 40396 |
| Item Name | Transformer,power Autotransforme |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Coast/advanced Chip Magnetics, Inc. |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Body Width | 1.875 INCHES NOMINAL IN |
| Body Height | 1.375 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUP IN |
| Body Length | 2.375 INCHES NOMINAL IN |
| Winding Operating Current | 4.5 AMPERES AC MINIMUM AND 6.7 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Winding Operating Voltage | 3.50 AC VOLTS NOMINAL AND 6.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Terminal Type and Quantity | 4 THREADED STUD |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 40396 | Coast/advanced Chip Magnetics, Inc. (USA) |
| 17955 | Robert M. Hadley Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7669002-503 | 3/2 Design control — primary reference U.S. Government activity |
| PMC1017 | 5/9 Secondary reference U.S. Government activity |
NSN 5950-00-988-0345 is a Transformer,power Autotransforme, manufactured by Coast/advanced Chip Magnetics, Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-988-0345 has 2 manufacturer part numbers on file: 40396 (Coast/advanced Chip Magnetics, Inc.), 17955 (Robert M. Hadley Company, Inc.).
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-073-1544, 2910-01-397-5726, 4130-01-459-9601. Verify interchangeability with system specifications before substitution.
Key specifications for 40396: Overall Height: 1.375 INCHES NOMINAL IN; Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 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.