The Transformer,pulse, cataloged under National Stock Number 5950-00-883-6660, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Magnetika Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-883-6660 |
| Primary Part Number | FD399 |
| Item Name | Transformer,pulse |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Magnetika Inc |
| Status | ACTIVE |
| Inclosure Type | HERMETICALLY SEALED |
| Body Outside Diameter | 0.510 INCHES NOMINAL IN |
| Mounting Method | TERMINAL SINGLE GROUP |
| Inductance Rating | 1.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Body Length | 0.800 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Primary to Secondary Turn Ratio | 1 TO 1 SINGLE COMPONENT |
| 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 |
| Part Number | Manufacturer |
|---|---|
| FD399 | Magnetika Inc (USA) |
| Reference | Meaning |
|---|---|
| FD399 | 5/9 Secondary reference U.S. Government activity |
| 8050000647 | 3/9 Design control — primary reference Navcom Defense Electronics, Inc. |
NSN 5950-00-883-6660 is a Transformer,pulse, manufactured by Magnetika Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-883-6660 has 1 manufacturer part number on file: FD399 (Magnetika Inc).
Key specifications for FD399: Inclosure Type: HERMETICALLY SEALED; Body Outside Diameter: 0.510 INCHES NOMINAL IN; Mounting Method: TERMINAL SINGLE GROUP; Inductance Rating: 1.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 9 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.