The Gear,spur, cataloged under National Stock Number 3020-01-047-5643, 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 24 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 | 3020-01-047-5643 |
| Primary Part Number | 6N4752 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Keyway Nominal Width | 0.125 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.750 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.500 INCHES SECOND END IN |
| Teeth Quantity | 25 |
| Body Style | WEBBED, OFFSET, SOLID |
| Counterbore Nominal Diameter | 0.906 INCHES FIRST END IN |
| Bore Style | W/COUNTERBORE FIRST END |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 2.375 INCHES FIRST END IN |
| First Step Nominal Length | 0.047 INCHES FIRST END IN |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Pitch Diameter | 3.5000 INCHES NOMINAL IN |
| Tooth Form | SPECIAL |
| First Step Nominal Diameter | 2.250 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| End Nominal Length | 2.328 INCHES FIRST END IN |
| Nominal Outside Diameter | 3.800 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.437 INCHES BOTH ENDS IN |
| End Nominal Diameter | 1.312 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 1.906 INCHES FIRST END IN |
| 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 |
|---|---|
| 6N4752 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 3020-01-047-5643 is a Gear,spur, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-047-5643 has 1 manufacturer part number on file: 6N4752 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 6N4752: Keyway Nominal Width: 0.125 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.750 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.500 INCHES SECOND END IN; Teeth Quantity: 25. 24 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.