The Distributor,ignition System, cataloged under National Stock Number 2920-01-042-9074, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Wisconsin Motors, Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-01-042-9074 |
| Primary Part Number | YF50ES1 |
| Item Name | Distributor,ignition System |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Wisconsin Motors, Llc |
| Status | ACTIVE |
| Maximum Advance Deg | 23.0 |
| RPM at Maximum Advance | 2000.0 |
| Spark Advance Control Method | CENTRIFUGAL |
| Mounting Method | CLAMP |
| Drive Connection Type | HELICAL GEAR |
| Shaft Rotation Direction | COUNTERCLOCKWISE |
| Drive Shaft Type | PLAIN |
| Shaft Length | 1.000 INCHES NOMINAL IN |
| Body Material | STEEL |
| Impulse Quantity Per Revolution | 4 |
| Contact Set Quantity | 1 |
| Surface Treatment | LACQUER |
| Ignition Type for Which Designed | SINGLE |
| Primary Terminal Accommodation Type | STUD |
| 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 |
|---|---|
| YF50ES1 PRIMARY | Wisconsin Motors, Llc (USA) |
| Reference | Meaning |
|---|---|
| YF45B | 5/9 Secondary reference Wisconsin Motors, Llc |
| YF-10-E | 5/9 Secondary reference Wisconsin Motors, Llc |
NSN 2920-01-042-9074 is a Distributor,ignition System, manufactured by Wisconsin Motors, Llc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-042-9074 has 1 manufacturer part number on file: YF50ES1 (Wisconsin Motors, Llc).
Key specifications for YF50ES1: Maximum Advance Deg: 23.0; RPM at Maximum Advance: 2000.0; Spark Advance Control Method: CENTRIFUGAL; Mounting Method: CLAMP. 14 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.