The Transformer,power, cataloged under National Stock Number 5950-01-164-8667, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Decco Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-01-164-8667 |
| Primary Part Number | DK-40 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Decco Inc |
| Status | ACTIVE |
| Inclosure Type | HERMETICALLY SEALED |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | TERMINAL SINGLE GROUP |
| Body Width | 1.500 INCHES NOMINAL IN |
| Body Height | 1.500 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Body Length | 1.810 INCHES NOMINAL IN |
| Winding Operating Current | 1.1 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Winding Operating Voltage | 40.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Winding Operating Voltage | 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Terminal Type and Quantity | 5 PIN |
| 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 |
|---|---|
| DK-40 | Decco Inc (USA) |
| Reference | Meaning |
|---|---|
| 806868-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5950-01-164-8667 is a Transformer,power, manufactured by Decco Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-164-8667 has 1 manufacturer part number on file: DK-40 (Decco Inc).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-438-8715. Verify interchangeability with system specifications before substitution.
Key specifications for DK-40: Overall Height: 1.750 INCHES NOMINAL IN; Inclosure Type: HERMETICALLY SEALED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Method: TERMINAL SINGLE GROUP. 13 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.