The Gear,spur, cataloged under National Stock Number 3020-00-184-9245, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-184-9245 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.423 INCHES BOTH ENDS IN |
| Teeth Quantity | 17 |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.043 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.272 INCHES FIRST END IN |
| First Step Nominal Length | 0.313 INCHES SECOND END IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM TEETH |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM HUB |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 2.8333 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 2.190 INCHES BOTH ENDS IN |
| Hub Style Designator | 1 STEP BOTH ENDS |
| Spline Quantity | 16 BOTH ENDS |
| End Nominal Length | 0.730 INCHES SECOND END IN |
| End Nominal Length | 0.772 INCHES FIRST END IN |
| Nominal Outside Diameter | 3.220 INCHES IN |
| End Nominal Diameter | 1.969 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 1.3333 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 1.125 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 |
|---|---|
| 2587659 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-184-9245 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-184-9245: Bore Nominal Diameter: 1.423 INCHES BOTH ENDS IN; Teeth Quantity: 17; Body Style: PLAIN, SOLID; Bore Style: INVOLUTE SPLINE BOTH ENDS. 23 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.