The Gear,helical, cataloged under National Stock Number 3020-00-565-9461, 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 Hatch & Kirk, Inc.. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-565-9461 |
| Primary Part Number | 3269957 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Helix Angle | 12.0000 DEGREES |
| Hub Nominal Diameter | 2.6200 INCHES SECOND END IN |
| Teeth Quantity | 17 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Nominal Distance Between Body Face and Protruding Hub End | 1.5380 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 4.5310 INCHES FIRST END IN |
| First Step Nominal Length | 1.5530 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 4.2500 INCHES NOMINAL IN |
| Tooth Form | SPECIAL |
| First Step Nominal Diameter | 2.6200 INCHES FIRST END IN |
| Features Provided | CASEHARDENED |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| End Nominal Length | 3.0000 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.7500 INCHES IN |
| End Nominal Diameter | 1.2280 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 3269957 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3269957 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
NSN 3020-00-565-9461 is a Gear,helical, manufactured by Hatch & Kirk, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-565-9461 has 1 manufacturer part number on file: 3269957 (Hatch & Kirk, Inc.).
Key specifications for 3269957: Helix Angle: 12.0000 DEGREES; Hub Nominal Diameter: 2.6200 INCHES SECOND END IN; Teeth Quantity: 17; Body Style: PLAIN, SOLID. 22 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.