The Gear,spur, cataloged under National Stock Number 3020-01-124-5371, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-124-5371 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 56 |
| Second Step Nominal Diameter | 0.120 INCHES SECOND END IN |
| Body Style | PLAIN, SOLID |
| Third Step Nominal Diameter | 0.312 INCHES SECOND END IN |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.044 INCHES BOTH ENDS IN |
| First Step Nominal Length | 0.020 INCHES SECOND END IN |
| First Step Nominal Length | 0.093 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Second Step Nominal Length | 0.044 INCHES SECOND END IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.5833 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.218 INCHES BOTH ENDS IN |
| Hub Style Designator | 3 STEPS SECOND END |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.044 INCHES BOTH ENDS IN |
| Nominal Outside Diameter | 0.604 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| End Nominal Diameter | 0.093 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 OVERALL |
| Third Step Nominal Length | 0.312 INCHES SECOND END IN |
| Face Nominal Width | 0.070 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 |
|---|---|
| 484853 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-124-5371 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-124-5371: Teeth Quantity: 56; Second Step Nominal Diameter: 0.120 INCHES SECOND END IN; Body Style: PLAIN, SOLID; Third Step Nominal Diameter: 0.312 INCHES SECOND END IN. 25 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.