The INSERT,ENGINE VALVE SEAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OR STEEL COMP 4130, thread_class: 3A NUT THREAD A, thread_length: 0.728 INCHES MINIMUM STUD THREAD IN, overall_length: 1.469 INCHES NOMINAL IN, shank_diameter: 0.312 INCHES NOMINAL IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-149-9621, 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 8740 OR STEEL COMP 4130 |
| thread_class | 3A NUT THREAD A |
| thread_length | 0.728 INCHES MINIMUM STUD THREAD IN |
| overall_length | 1.469 INCHES NOMINAL IN |
| shank_diameter | 0.312 INCHES NOMINAL IN |
| hardness_rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| style_designator | STEPPED |
| thread_direction | RIGHT-HAND NUT THREAD |
| surface_treatment | CADMIUM OVERALL |
| nominal_thread_size | 0.312 INCHES NUT THREAD IN |
| thread_pitch_diameters | +0.3365 TO 0.3381 INCHES STUD THREAD IN |
| thread_quantity_per_inch | 16 STUD THREAD |
| NSN | 5307-00-149-9621 |
| THREAD SERIES DESIGNATOR | UNS STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| STYLE DESIGNATOR | STEPPED |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| NOMINAL THREAD SIZE | 0.375 INCHES STUD THREAD IN |
| THREAD LENGTH | 0.500 INCHES MINIMUM NUT THREAD IN |
| THREAD LENGTH | 0.728 INCHES MINIMUM STUD THREAD IN |
| MATERIAL | STEEL COMP 8740 OR STEEL COMP 4130 |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| SURFACE TREATMENT | CADMIUM OVERALL |