2642-343-03: GEAR,INTERNAL.
The GEAR,INTERNAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: PLAIN, SOLID, bore_style: STRAIGHT SPLINE FIRST END, teeth_type: SPUR, tooth_form: STUB, pitch_diameter: 4.2000 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 3040-01-103-7303, 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 | STRAIGHT SPLINE FIRST END |
| teeth_type | SPUR |
| tooth_form | STUB |
| pitch_diameter | 4.2000 INCHES NOMINAL IN |
| pressure_angle | 20.0000 DEGREES |
| teeth_quantity | 42 |
| hardness_rating | 39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| spline_quantity | 10 FIRST END |
| style_designator | SOLID BACK RING, PROTRUDING HUB, RECESSED HUB |
| end_nominal_length | 0.844 INCHES FIRST END IN |
| NSN | 3040-01-103-7303 |
| SECOND END EXTERNAL THREAD LENGTH | 0.547 INCHES NOMINAL IN |
| STEP QUANTITY | 7 |
| FIRST END DIAMETER | 0.9997 INCHES NOMINAL IN |
| SECOND END DIAMETER | 0.7500 INCHES NOMINAL IN |
| LARGEST STEP DIAMETER | 1.812 INCHES NOMINAL IN |
| FIRST END STYLE | PLAIN |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-1222,TYPE 1,SYMBOL B7 MIL SPEC SINGLE MATERIAL RESPONSE |
| OVERALL LENGTH | 6.609 INCHES NOMINAL IN |
| END SIMILARITY | NOT IDENTICAL |
| SPECIAL FEATURES | MAJOR PORTION OF SHAFT IS ECCENTRIC TO SHAFT CENTERLINE 0.399 IN.;1ST END 0.656 IN.DIA,0.250 IN.DEEP COUNTERBORE;2ND END 0.438 IN.DIA,0.312 IN.DEEP COUNTERBORE IN |