The Gear,spur, cataloged under National Stock Number 3020-01-083-3018, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 27 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-083-3018 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.350 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.590 INCHES SECOND END IN |
| Backlash Designation | GRADE A |
| Teeth Quantity | 18 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.436 INCHES FIRST END IN |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.625 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.270 INCHES FIRST END IN |
| First Step Nominal Length | 0.270 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Hardness Rating | 58.0 ROCKWELL C NOMINAL OVERALL |
| Nominal Overall Length | 1.518 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 0.7500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.590 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Spline Quantity | 12 BOTH ENDS |
| End Nominal Length | 0.300 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.845 INCHES IN |
| End Nominal Diameter | 0.560 INCHES FIRST END IN |
| Pressure Angle | 22.5000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Counterbore Nominal Depth | 0.280 INCHES FIRST END IN |
| Face Nominal Width | 0.623 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 42292D66 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-083-3018 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-083-3018: Bore Nominal Diameter: 0.350 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.590 INCHES SECOND END IN; Backlash Designation: GRADE A; Teeth Quantity: 18. 27 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.
NSN 3020-01-083-3018 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.