The Gear Cluster, cataloged under National Stock Number 3020-00-646-7045, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Am General Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-646-7045 |
| Primary Part Number | 00906197 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.250 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.378 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.000 INCHES SECOND END IN |
| Hub Nominal Diameter | 2.344 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | HELICAL FIRST GEAR |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Overall Length | 1.531 INCHES IN |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | PLAIN SECOND END |
| Hub Nominal Length | 0.120 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Length | 0.394 INCHES SECOND END IN |
| Nominal Outside Diameter | 2.564 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 2.969 INCHES FIRST GEAR IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.812 INCHES BOTH ENDS IN |
| Material | STEEL COMP 4027 OVERALL |
| Construction | SOLID |
| 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 |
|---|---|
| 00906197 PRIMARY | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 906197 | 5/9 Secondary reference Am General Llc |
| 7994786 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 7374994 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 640398 | 5/9 Secondary reference Spalla Inc |
| 640398 | 5/9 Secondary reference Am General Llc |
| AT90A11 | 5/9 Secondary reference Liberty Ventures Inti, Llc |
NSN 3020-00-646-7045 is a Gear Cluster, manufactured by Am General Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-646-7045 has 1 manufacturer part number on file: 00906197 (Am General Llc).
Key specifications for 00906197: Keyway Nominal Width: 0.250 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.378 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.000 INCHES SECOND END IN; Hub Nominal Diameter: 2.344 INCHES BETWEEN FIRST AND SECOND GEAR IN. 18 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.