The Gear,spur, cataloged under National Stock Number 3020-00-415-4391, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-415-4391 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.226 INCHES BOTH ENDS IN |
| Teeth Quantity | 28 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 2.237 INCHES SECOND END IN |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.688 INCHES FIRST END IN |
| First Step Nominal Length | 0.156 INCHES FIRST END IN |
| Hardness Rating | 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM TEETH |
| Nominal Overall Length | 2.000 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | AISI C1118 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.7555 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 2.437 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Spline Quantity | 6 BOTH ENDS |
| End Nominal Length | 0.532 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.952 INCHES IN |
| Nominal Distance From End to First Groove | 0.407 INCHES FIRST END IN |
| End Nominal Diameter | 2.085 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| First Groove Nominal Diameter | 2.093 INCHES FIRST END IN |
| Counterbore Nominal Depth | 1.062 INCHES SECOND END IN |
| First Groove Nominal Width | 0.125 INCHES FIRST END IN |
| Face Nominal Width | 1.312 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 |
|---|---|
| 3XE3A | 5/2 Secondary reference U.S. Government activity |
| 3XE3A | 3/9 Design control — primary reference Paragon Power Inc Sub of Great Lakes Power Products Inc |
NSN 3020-00-415-4391 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-415-4391: Bore Nominal Diameter: 1.226 INCHES BOTH ENDS IN; Teeth Quantity: 28; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 2.237 INCHES SECOND END IN. 26 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.