The Magneto,ignition, cataloged under National Stock Number 2920-00-640-7538, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-640-7538 |
| Primary Part Number | FMJH2B70A |
| Item Name | Magneto,ignition |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 |
| Mounting Method | FLANGE |
| Pole Quantity | 2 |
| Mounting Facility Thread Quantity Per Inch | 20 |
| Shaft Rotation Direction | COUNTERCLOCKWISE |
| Distance Between Mounting Facility Centers | 2.750 INCHES NOMINAL IN |
| Drive Shaft Type | PLAIN |
| Shaft Length | 1.438 INCHES NOMINAL IN |
| Body Material | ALUMINUM OR ALUMINUM ALLOY |
| Mounting Facility Thread Diameter | 0.250 INCHES NOMINAL IN |
| Impulse Quantity Per Revolution | 2 |
| Contact Set Quantity | 1 |
| Mounting Facility | THREADED HOLE(S) |
| Ignition Type for Which Designed | SINGLE |
| Performance Type | HIGH TENSION |
| Rotation Element Type | PERMANENT MAGNET ROTOR |
| 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 |
|---|---|
| FMJH2B70A PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| SKA50000A | 3/2 Design control — primary reference U.S. Government activity |
| SKA500A | 5/9 Secondary reference U.S. Government activity |
| FMJH2B70A | 5/9 Secondary reference U.S. Government activity |
NSN 2920-00-640-7538 is a Magneto,ignition, manufactured by Fairbanks Morse, Llc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-640-7538 has 1 manufacturer part number on file: FMJH2B70A (Fairbanks Morse, Llc).
Key specifications for FMJH2B70A: Mounting Facility Quantity: 2; Mounting Method: FLANGE; Pole Quantity: 2; Mounting Facility Thread Quantity Per Inch: 20. 16 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.