The Gear,spur, cataloged under National Stock Number 3020-00-347-4896, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-347-4896 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.201 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.328 INCHES FIRST END IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 19 |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.094 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Hardness Rating | 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 91.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL |
| Nominal Overall Length | 0.281 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | MIL-S-7493,COMP 4620 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.5937 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Spline Quantity | 10 BOTH ENDS |
| Nominal Outside Diameter | 0.656 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4620 OVERALL |
| Spline Pitch Diameter | 0.2083 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.187 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 |
|---|---|
| 28784-3 | 3/2 Design control — primary reference U.S. Government activity |
| 28784-3 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-347-4896 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-347-4896: Bore Nominal Diameter: 0.201 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.328 INCHES FIRST END IN; Backlash Designation: GRADE C; Teeth Quantity: 19. 22 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.