The Gear Cluster, cataloged under National Stock Number 3020-01-374-0015, 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 U S Army Tank Automotive Command Amsta-Im-Mm. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-374-0015 |
| Primary Part Number | 7709122 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.790 INCHES SECOND END IN |
| Counterbore Nominal Diameter | 5.515 INCHES FIRST END IN |
| Design Type | BEVEL SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN SECOND END |
| Bore Style | W/COUNTERBORE FIRST END |
| Nominal Overall Length | 6.906 INCHES IN |
| Material Document and Classification | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter | 6.611 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 9.173 INCHES FIRST GEAR IN |
| Material | STEEL COMP 8620 OVERALL |
| Counterbore Nominal Depth | 2.000 INCHES FIRST END IN |
| 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 |
|---|---|
| 7709122 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-01-374-0015 is a Gear Cluster, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-374-0015 has 1 manufacturer part number on file: 7709122 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7709122: Bore Nominal Diameter: 3.790 INCHES SECOND END IN; Counterbore Nominal Diameter: 5.515 INCHES FIRST END IN; Design Type: BEVEL 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.