The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL COMP E4340H OVERALL, body_style: PLAIN, SOLID, bore_style: STRAIGHT SPLINE BOTH ENDS, tooth_form: STUB, pitch_diameter: 4.0000 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-308-7163, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| material | STEEL COMP E4340H OVERALL |
| body_style | PLAIN, SOLID |
| bore_style | STRAIGHT SPLINE BOTH ENDS |
| tooth_form | STUB |
| pitch_diameter | 4.0000 INCHES NOMINAL IN |
| pressure_angle | 20.0000 DEGREES |
| teeth_quantity | 12 |
| hardness_rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| spline_quantity | 6 BOTH ENDS |
| special_features | SPLINE MINOR NOM. DIA. 1.911 IN. IN |
| style_designator | PROTRUDING HUB |
| face_nominal_width | 3.500 INCHES IN |
| NSN | 3020-00-308-7163 |
| BODY STYLE | PLAIN, SOLID |
| PITCH DIAMETER | 4.0000 INCHES NOMINAL IN |
| COUNTERBORE NOMINAL DEPTH | 0.687 INCHES FIRST END IN |
| TEETH QUANTITY | 12 |
| NOMINAL OUTSIDE DIAMETER | 4.498 INCHES IN |
| NOMINAL OVERALL LENGTH | 3.938 INCHES IN |
| HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| TOOTH FORM | STUB |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.182 INCHES FIRST END IN |
| SPECIAL FEATURES | SPLINE MINOR NOM. DIA. 1.911 IN. IN |