The Gear,spur, cataloged under National Stock Number 3020-01-120-3418, 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23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-120-3418 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.187 INCHES BOTH ENDS IN |
| Teeth Quantity | 36 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 2 PLAIN AND 1 PLAIN AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.266 INCHES FIRST END IN |
| First Step Nominal Length | 0.203 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.096 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-764,TYPE 303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.5625 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.313 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.063 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.594 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| End Nominal Diameter | 0.250 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 OVERALL |
| Bolt Hole Circle Nominal Diameter | 0.406 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.171 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 |
|---|---|
| A-15498 | 3/9 Design control — primary reference L3 Technologies, Inc. |
NSN 3020-01-120-3418 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-120-3418: Bore Nominal Diameter: 0.187 INCHES BOTH ENDS IN; Teeth Quantity: 36; Body Style: PLAIN, SOLID; Bore Style: PLAIN 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.