The Gear Cluster, cataloged under National Stock Number 3020-00-040-1728, 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 General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems. Government technical data includes 13 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 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 | 3020-00-040-1728 |
| Primary Part Number | 109580 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.094 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE E FIRST GEAR |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 SECOND GEAR |
| Nominal Overall Length | 0.315 INCHES IN |
| Material Document and Classification | QQ-A-764,TYPE 416,COND T FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Hub Nominal Length | 0.080 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 0.199 INCHES FIFTH GEAR IN |
| Nominal Outside Diameter | 1.116 INCHES FOURTH GEAR IN |
| Material | STEEL COMP 416 OVERALL |
| Construction | ASSEMBLED |
| 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 |
|---|---|
| 109580 PRIMARY | General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems (CAN) |
NSN 3020-00-040-1728 is a Gear Cluster, manufactured by General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-040-1728 has 1 manufacturer part number on file: 109580 (General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-197-5169. Verify interchangeability with system specifications before substitution.
Key specifications for 109580: Bore Nominal Diameter: 0.094 INCHES BOTH ENDS IN; Backlash Designation: GRADE E FIRST GEAR; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR. 13 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.