The Gear,helical, cataloged under National Stock Number 3020-01-040-7347, 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 Oshkosh Defense Llc. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-040-7347 |
| Primary Part Number | EE-59457 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 9.970 INCHES BOTH ENDS IN |
| Helix Angle | 16.2676 DEGREES |
| Hub Nominal Diameter | 1.162 INCHES BOTH ENDS IN |
| Teeth Quantity | 61 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 12 PLAIN AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 1.120 INCHES BOTH ENDS IN |
| Mounting Hole Nominal Diameter | 0.530 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 12.7080 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 13.103 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8620 OVERALL |
| Bolt Hole Circle Nominal Diameter | 10.750 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 2.500 INCHES IN |
| 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 |
|---|---|
| EE-59457 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| EE-59457 | 5/9 Secondary reference Oshkosh Corp |
NSN 3020-01-040-7347 is a Gear,helical, manufactured by Oshkosh Defense Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-040-7347 has 1 manufacturer part number on file: EE-59457 (Oshkosh Defense Llc).
Key specifications for EE-59457: Bore Nominal Diameter: 9.970 INCHES BOTH ENDS IN; Helix Angle: 16.2676 DEGREES; Hub Nominal Diameter: 1.162 INCHES BOTH ENDS IN; Teeth Quantity: 61. 21 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.