The Starter,engine,electrical, cataloged under National Stock Number 2920-00-366-0450, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-366-0450 |
| Primary Part Number | 512108 |
| Item Name | Starter,engine,electrical |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Voltage in Volts | 6.0 |
| Engaging Mechanism Opening Angular Deviation in Deg | 180.0 |
| Mounting Hole Diameter | 0.406 INCHES NOMINAL IN |
| Shaft Rotation Direction | CLOCKWISE |
| Mounting Flange Shape Style | TRIANGULAR |
| Engaging Mechanism to Armature Positional Relationship | STRAIGHT |
| Mounting Flange Angular Deviation in Deg | 0.0 |
| Mounting Hole Circle Radius | 2.500 INCHES NOMINAL IN |
| Lock Test Current Rating in Amps | 390.0 |
| Engaging Mechanism Style | PERIPHERAL OUTBOARD GEAR DRIVE W/WORM SHAFT AND TORSION DRIVE SPRING W/DRIVE HOUSING |
| Terminal Type and Quantity | 1 THREADED 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 |
|---|---|
| 50650B | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 512108 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 4612850 | Agco Corp Parts Opn (USA) |
| Reference | Meaning |
|---|---|
| L12108 | 5/9 Secondary reference Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co |
| 50650B | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 2920-00-366-0450 is a Starter,engine,electrical, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-366-0450 has 3 manufacturer part numbers on file: 50650B (Brinkley Technology Group Llc Dba Hercules Manufacturing), 512108 (Caterpillar Inc Div Caterpillar Defense), 4612850 (Agco Corp Parts Opn).
1 possible match (shared part number, not a government interchangeability claim): 5340-00-780-9607. Verify interchangeability with system specifications before substitution.
Key specifications for 512108: Voltage in Volts: 6.0; Engaging Mechanism Opening Angular Deviation in Deg: 180.0; Mounting Hole Diameter: 0.406 INCHES NOMINAL IN; Shaft Rotation Direction: CLOCKWISE. 11 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.