The Magneto,ignition, cataloged under National Stock Number 2920-00-252-5222, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is United Technologies Corp Electro Systems Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-252-5222 |
| Primary Part Number | MJK4-2-360D47 |
| Item Name | Magneto,ignition |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | United Technologies Corp Electro Systems Inc |
| Status | ACTIVE |
| Mounting Standard Controlling Agency | SAE |
| Mounting Facility Quantity | 2 |
| Mounting Slot Length | 1.137 INCHES NOMINAL IN |
| Mounting Method | FLANGE |
| Pole Quantity | 2 |
| Mounting Facility Thread Quantity Per Inch | 16 |
| Shaft Rotation Direction | COUNTERCLOCKWISE |
| Distance Between Mounting Facility Centers | 4.182 INCHES MINIMUM AND 4.194 INCHES MAXIMUM IN |
| Drive Shaft Type | KEYWAY SHAFT |
| Shaft Length | 1.188 INCHES NOMINAL IN |
| Body Material | ALUMINUM ALLOY |
| Mounting Facility Thread Diameter | 0.375 INCHES NOMINAL IN |
| Impulse Quantity Per Revolution | 2 |
| Contact Set Quantity | 1 |
| Mounting Facility | SLOT AND THREADED HOLE(S) |
| Ignition Type for Which Designed | SINGLE |
| Performance Type | HIGH TENSION |
| Rotation Element Type | PERMANENT MAGNET ROTOR |
| Mounting Slot Width | 0.403 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MJK4-2-360D47 PRIMARY | United Technologies Corp Electro Systems Inc (USA) |
| 7F9932 | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| MJK4-2-360D47 | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
NSN 2920-00-252-5222 is a Magneto,ignition, manufactured by United Technologies Corp Electro Systems Inc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-252-5222 has 2 manufacturer part numbers on file: MJK4-2-360D47 (United Technologies Corp Electro Systems Inc), 7F9932 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for MJK4-2-360D47: Mounting Standard Controlling Agency: SAE; Mounting Facility Quantity: 2; Mounting Slot Length: 1.137 INCHES NOMINAL IN; Mounting Method: FLANGE. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.