The Gear,spur, cataloged under National Stock Number 3020-01-047-5419, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-047-5419 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.870 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 3.375 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 5.750 INCHES FIRST END IN |
| Teeth Quantity | 20 |
| Surface Treatment Document and Classification | MIL-P-16232 TYPE M,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.500 INCHES FIRST END IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 3.500 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.6666 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PINNED FIRST END |
| Nominal Outside Diameter | 7.333 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 2.124 INCHES BOTH ENDS IN |
| Surface Treatment | PHOSPHATE MANGANESE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4150 OVERALL |
| Face Nominal Width | 2.000 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 |
|---|---|
| 712466-01 | 3/9 Design control — primary reference Edo |
NSN 3020-01-047-5419 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-047-5419: Keyway Nominal Width: 0.870 INCHES BOTH ENDS IN; Bore Nominal Diameter: 3.375 INCHES BOTH ENDS IN; Hub Nominal Diameter: 5.750 INCHES FIRST END IN; Teeth Quantity: 20. 21 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.