The Transformer, cataloged under National Stock Number 5950-00-690-4259, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Transformer |
| FSC / FSG | 5950 — Coils and Transformers (FSG 59) |
| Manufacturers | Westinghouse Electric Corp (CAGE 79500); Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (CAGE 02750) |
| Parameter | Value |
|---|---|
| NSN | 5950-00-690-4259 |
| Primary Part Number | JK309 |
| Item Name | Transformer |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 928D235H03 | Westinghouse Electric Corp (USA) |
| JK309REVCPCALL | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
| 140BB25PC30 | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
| 140BB11PCC | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
| 140BB9PCB | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
| JK309 PRIMARY | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
| 140BB23PC26 | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| KBD2900 PC. 6 | 5/1 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| 140BB26PC38 | 5/1 Secondary reference Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
| 140BB29PC32 | 5/1 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| 140BB13PC38 | 5/1 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| JK309 | 5/1 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| 120862 PC 10 | 5/1 Secondary reference U.S. Government activity |
| 140BB29PC32 | 5/1 Secondary reference Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
| 140BB26PC38 | 5/1 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| 901569 | 5/9 Secondary reference Measurement Specialties Inc |
| 0356-0099-000 | 5/9 Secondary reference Measurement Specialties Inc |
| 6103D03-13 | 5/1 Secondary reference Northrop Grumman Systems Corporation Div Marine Systems |
| 140BB13PC1 | 5/1 Secondary reference Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
| 140BB28PC26 | 5/1 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| 140BB24PC29 | 5/1 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| 7N223 PC. - | 5/1 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
NSN 5950-00-690-4259 is a Transformer, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-690-4259 has 7 manufacturer part numbers on file: 928D235H03 (Westinghouse Electric Corp), JK309REVCPCALL (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution), 140BB25PC30 (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution), 140BB11PCC (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution), 140BB9PCB (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 4470-01-354-2990. Verify interchangeability with system specifications before substitution.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5950-00-690-4259 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.