The Gear,helical, cataloged under National Stock Number 3020-00-460-6597, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-460-6597 |
| Primary Part Number | 5S7660 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 EXTERNALLY LUBRICATED BEARING |
| Bore Nominal Diameter | 1.3805 INCHES BOTH ENDS IN |
| Helix Angle | 17.0000 DEGREES |
| Hub Nominal Diameter | 2.065 INCHES BOTH ENDS IN |
| Teeth Quantity | 57 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Tooth Direction | LEFT |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.239 INCHES BOTH ENDS IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 5.7355 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 6.1625 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.753 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 |
|---|---|
| 5S7660 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 5S7660-00 | 5/9 Secondary reference Mil-Tech Mfg Inc |
NSN 3020-00-460-6597 is a Gear,helical, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-460-6597 has 1 manufacturer part number on file: 5S7660 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 5S7660: Furnished Items and Quantity: 1 EXTERNALLY LUBRICATED BEARING; Bore Nominal Diameter: 1.3805 INCHES BOTH ENDS IN; Helix Angle: 17.0000 DEGREES; Hub Nominal Diameter: 2.065 INCHES BOTH ENDS IN. 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.