The Gear,spur, cataloged under National Stock Number 3020-01-047-1863, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-047-1863 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.627 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 2.376 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.375 INCHES FIRST END IN |
| Teeth Quantity | 49 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.064 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | 66AISI/SAE1045 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 9.8000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 10.086 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 1.458 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1045 OVERALL |
| Face Nominal Width | 1.500 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 |
| Reference | Meaning |
|---|---|
| CB71-42002PC40 | 5/9 Secondary reference U.S. Government activity |
| CB71-42069-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-01-047-1863 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-047-1863: Keyway Nominal Width: 0.627 INCHES BOTH ENDS IN; Bore Nominal Diameter: 2.376 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Teeth Quantity: 49. 17 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.