The Gear Cluster, cataloged under National Stock Number 3020-00-296-3205, 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-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 17 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 | 3020-00-296-3205 |
| Primary Part Number | 189F124-2 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.623 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.800 INCHES FIRST END IN |
| Hub Nominal Diameter | 2.640 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Precision Classification | QUALITY NUMBER 9 FIRST GEAR |
| Nominal Overall Length | 0.665 INCHES IN |
| Material Document and Classification | MIL-S-81591,COMP 1C-322A,TYPE 17-4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | PLAIN FIRST END |
| Hub Nominal Length | 0.110 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Length | 0.605 INCHES FIRST END IN |
| Nominal Outside Diameter | 3.190 INCHES ALL GEARS IN |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 0.5625 INCHES NOMINAL BOTH ENDS IN |
| 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 |
|---|---|
| 189F124-2 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
NSN 3020-00-296-3205 is a Gear Cluster, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-296-3205 has 1 manufacturer part number on file: 189F124-2 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 189F124-2: Bore Nominal Diameter: 0.623 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.800 INCHES FIRST END IN; Hub Nominal Diameter: 2.640 INCHES BETWEEN FIRST AND SECOND GEAR IN; Design Type: SPUR SECOND GEAR. 17 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.