The Gear,helical, cataloged under National Stock Number 3020-00-262-8933, 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 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-262-8933 |
| Primary Part Number | 3239282 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Helix Angle | 10.0000 DEGREES |
| Hub Nominal Diameter | 2.6208 INCHES BOTH ENDS IN |
| Teeth Quantity | 17 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | LEFT |
| Nominal Distance Between Body Face and Protruding Hub End | 1.531 INCHES BOTH ENDS IN |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 61.0 ROCKWELL C NOMINAL HUB |
| Hardness Rating | 61.0 ROCKWELL C NOMINAL TEETH |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-869,CLASS A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.2500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 4.7450 INCHES IN |
| Pressure Angle | 28.0000 DEGREES |
| Material | STEEL COMP 135M OVERALL |
| Face Nominal Width | 2.812 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 |
|---|---|
| 3239282 PRIMARY | Hatch & Kirk, Inc. (USA) |
| 3303120 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3303120 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| 3239282 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
NSN 3020-00-262-8933 is a Gear,helical, manufactured by Hatch & Kirk, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-262-8933 has 2 manufacturer part numbers on file: 3239282 (Hatch & Kirk, Inc.), 3303120 (Hatch & Kirk, Inc.).
Key specifications for 3239282: Helix Angle: 10.0000 DEGREES; Hub Nominal Diameter: 2.6208 INCHES BOTH ENDS IN; Teeth Quantity: 17; Body Style: PLAIN, SOLID. 18 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.