The Gear Cluster, cataloged under National Stock Number 3020-00-737-2012, 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 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-737-2012 |
| Primary Part Number | 7372012 |
| 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 | 2.626 INCHES BOTH ENDS IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | HELICAL FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Hardness Rating | 57.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM TEETH |
| Nominal Overall Length | 1.820 INCHES IN |
| Material Document and Classification | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter | 4.887 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 7.098 INCHES FIRST GEAR IN |
| Material | STEEL COMP 8620H OVERALL |
| Construction | SOLID |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 7372012 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 837T5 | 5/9 Secondary reference Spalla Inc |
| 913665 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 837T5 | 5/9 Secondary reference Diamond Reo Truck Co |
| 3892M1183 | 3/9 Design control — primary reference Meritor Heavy Vehicle Systems, Llc |
NSN 3020-00-737-2012 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 3020-00-737-2012 has 1 manufacturer part number on file: 7372012 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7372012: Bore Nominal Diameter: 2.626 INCHES BOTH ENDS IN; Design Type: SPUR SECOND GEAR; Design Type: HELICAL FIRST GEAR; Bore Style: PLAIN BOTH ENDS. 12 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.