The Gear Cluster, cataloged under National Stock Number 3020-01-118-9397, 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 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-118-9397 |
| Primary Part Number | 132D1931 |
| 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 | 1.160 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.370 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.400 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Counterbore Nominal Diameter | 1.2603 INCHES BOTH ENDS IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Nominal Overall Length | 0.910 INCHES IN |
| Material Document and Classification | MIL-T-9047,CLASS 6 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | PLAIN SECOND END |
| Hub Nominal Length | 0.0570 INCHES SECOND END IN |
| Hub Nominal Length | 0.286 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 2.1050 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 2.8720 INCHES FIRST GEAR IN |
| Surface Treatment | LACQUER OVERALL |
| Material | TITANIUM ALLOY OVERALL |
| Counterbore Nominal Depth | 0.340 INCHES BOTH ENDS 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 |
|---|---|
| 132D1931 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| Reference | Meaning |
|---|---|
| 10106641 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 3020-01-118-9397 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 3020-01-118-9397 has 1 manufacturer part number on file: 132D1931 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 132D1931: Bore Nominal Diameter: 1.160 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.370 INCHES SECOND END IN; Hub Nominal Diameter: 1.400 INCHES BETWEEN FIRST AND SECOND GEAR IN; Counterbore Nominal Diameter: 1.2603 INCHES BOTH ENDS IN. 19 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.