121933: 121933.
The 121933 is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340H OVERALL, body_style: WEBBED, OFFSET, SOLID, bore_style: W/ KEYWAY BOTH ENDS, teeth_type: SINGLE HELIX, tooth_form: STANDARD, helix_angle: 22.6195 DEGREES. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-012-1933, 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 4340H OVERALL |
| body_style | WEBBED, OFFSET, SOLID |
| bore_style | W/ KEYWAY BOTH ENDS |
| teeth_type | SINGLE HELIX |
| tooth_form | STANDARD |
| helix_angle | 22.6195 DEGREES |
| pitch_diameter | 4.8750 INCHES NOMINAL IN |
| pressure_angle | 20.0000 DEGREES |
| teeth_quantity | 36 |
| tooth_direction | LEFT |
| style_designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| face_nominal_width | 1.253 INCHES IN |
| NSN | 5305-00-012-1933 |
| HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| FASTENER LENGTH | 1.563 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 0.750 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| HARDNESS RATING | 100.0 ROCKWELL B MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY FASTENER LENGTH |