The Gear,helical, cataloged under National Stock Number 3020-00-239-2485, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 20 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 | 3020-00-239-2485 |
| Primary Part Number | 5L8942 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Keyway Nominal Width | 0.252 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.094 INCHES FIRST END IN |
| Helix Angle | 8.0000 DEGREES |
| Hub Nominal Diameter | 1.890 INCHES FIRST END IN |
| Teeth Quantity | 17 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | LEFT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.344 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 2.8612 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Features Provided | CASEHARDENED |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 3.3380 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.700 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 1.000 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 |
|---|---|
| 5L8942 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 3020-00-239-2485 is a Gear,helical, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-239-2485 has 1 manufacturer part number on file: 5L8942 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 5L8942: Keyway Nominal Width: 0.252 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.094 INCHES FIRST END IN; Helix Angle: 8.0000 DEGREES; Hub Nominal Diameter: 1.890 INCHES FIRST END IN. 20 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.