The Gear,spur, cataloged under National Stock Number 3020-00-844-5141, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-844-5141 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Nominal Distance From End to Second Groove | 0.530 INCHES FIRST END IN |
| Bore Nominal Diameter | 2.380 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.938 INCHES FIRST END IN |
| Hub Nominal Diameter | 3.200 INCHES SECOND END IN |
| Teeth Quantity | 37 |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.075 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.533 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 6.1666 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Second Groove Nominal Width | 0.300 INCHES FIRST END IN |
| Features Provided | CASEHARDENED |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | 2 GROOVES FIRST END |
| Spline Quantity | 10 BOTH ENDS |
| Nominal Outside Diameter | 6.405 INCHES IN |
| Nominal Distance From End to First Groove | 0.150 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| First Groove Nominal Diameter | 3.437 INCHES FIRST END IN |
| First Groove Nominal Width | 0.300 INCHES FIRST END IN |
| Face Nominal Width | 0.985 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 |
|---|---|
| 312678C1 | 3/2 Design control — primary reference U.S. Government activity |
| 312678C2 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-00-844-5141 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-844-5141: Nominal Distance From End to Second Groove: 0.530 INCHES FIRST END IN; Bore Nominal Diameter: 2.380 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.938 INCHES FIRST END IN; Hub Nominal Diameter: 3.200 INCHES SECOND END IN. 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.