3156SH21PC7: GEAR,SPUR.
The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: PLAIN, SOLID, bore_style: W/ KEYWAY BOTH ENDS, tooth_form: STANDARD, pitch_diameter: 3.2460 INCHES MINIMUM AND 3.2480 INCHES MAXIMUM IN, pressure_angle: 20.0000 DEGREES. This part is cataloged in the U.S.
Government catalog under NSN 3020-00-287-8261, 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 OVERALL |
| body_style | PLAIN, SOLID |
| bore_style | W/ KEYWAY BOTH ENDS |
| tooth_form | STANDARD |
| pitch_diameter | 3.2460 INCHES MINIMUM AND 3.2480 INCHES MAXIMUM IN |
| pressure_angle | 20.0000 DEGREES |
| teeth_quantity | 39 |
| hardness_rating | 60.0 ROCKWELL C NOMINAL OVERALL |
| style_designator | PROTRUDING HUB |
| face_nominal_width | 1.235 INCHES IN |
| hub_nominal_diameter | 2.051 INCHES FIRST END IN |
| hub_style_designator | PLAIN FIRST END |
| NSN | 3020-00-287-8261 |
| KEYWAY NOMINAL WIDTH | 0.156 INCHES BOTH ENDS IN |
| BORE NOMINAL DIAMETER | 1.437 INCHES BOTH ENDS IN |
| HUB NOMINAL DIAMETER | 2.051 INCHES FIRST END IN |
| TEETH QUANTITY | 39 |
| BODY STYLE | PLAIN, SOLID |
| BORE STYLE | W/ KEYWAY BOTH ENDS |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.750 INCHES FIRST END IN |
| HARDNESS RATING | 60.0 ROCKWELL C NOMINAL OVERALL |
| STYLE DESIGNATOR | PROTRUDING HUB |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-890,ALLOY NO. 3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |