The Coil,magneto, cataloged under National Stock Number 2920-00-640-7646, 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 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-640-7646 |
| Primary Part Number | R2477CX |
| Item Name | Coil,magneto |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Core Width | 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN |
| Primary Winding Turn Quantity | 160160 |
| Secondary Winding Turn Quantity | 1700017000 |
| Length | 2.500 INCHES NOMINAL2.500 INCHES NOMINAL IN |
| Core Height | 0.391 INCHES NOMINAL0.391 INCHES NOMINAL IN |
| Secondary Terminal Quantity | 11 |
| Core | INCLUDEDINCLUDED |
| Secondary Winding Awg Size | 4040 |
| Core Length | 2.688 INCHES NOMINAL2.688 INCHES NOMINAL IN |
| Primary Terminal Type | WIRE LEADWIRE LEAD |
| Secondary Terminal Type | THREADED HOLETHREADED HOLE |
| Primary Winding Awg Size | 1919 |
| Height | 2.016 INCHES NOMINAL2.016 INCHES NOMINAL IN |
| Mounting Configuration | SCREW MTDSCREW MTD |
| Width | 1.750 INCHES NOMINAL1.750 INCHES NOMINAL IN |
| Material | OIL IMPREGNATIONOIL IMPREGNATION |
| Material | PLASTIC EXTERIOR INSULATIONPLASTIC EXTERIOR INSULATION |
| Furnished Items | FRAMEFRAME |
| Primary Terminal Quantity | 11 |
| 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 |
|---|---|
| R2477CX PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| R2477CX | 3/9 Design control — primary reference U.S. Government activity |
NSN 2920-00-640-7646 is a Coil,magneto, manufactured by Fairbanks Morse, Llc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-640-7646 has 1 manufacturer part number on file: R2477CX (Fairbanks Morse, Llc).
Key specifications for R2477CX: Core Width: 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN; Primary Winding Turn Quantity: 160160; Secondary Winding Turn Quantity: 1700017000; Length: 2.500 INCHES NOMINAL2.500 INCHES NOMINAL IN. 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.