KNNS428JT-21: STUD,LOCKED IN.
The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660, thread_class: 3A NUT THREAD A, thread_length: 0.400 INCHES MINIMUM AND 0.500 INCHES MAXIMUM NUT THREAD IN, overall_length: 1.652 INCHES MINIMUM AND 1.712 INCHES MAXIMUM IN, locking_feature: RING, LOCK KEYED, special_features: FAILURE OF THE STUD MAY CAUSE NONRECOVERABLE SHUTDOWN (NRISSD). This part is cataloged in the U.S.
Government catalog under NSN 5307-01-190-7239, 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 | IRON ALLOY 660 |
| thread_class | 3A NUT THREAD A |
| thread_length | 0.400 INCHES MINIMUM AND 0.500 INCHES MAXIMUM NUT THREAD IN |
| overall_length | 1.652 INCHES MINIMUM AND 1.712 INCHES MAXIMUM IN |
| locking_feature | RING, LOCK KEYED |
| special_features | FAILURE OF THE STUD MAY CAUSE NONRECOVERABLE SHUTDOWN (NRISSD) |
| style_designator | LOCKED IN |
| thread_direction | RIGHT-HAND NUT THREAD |
| surface_treatment | PASSIVATE OVERALL |
| nominal_thread_size | 0.250 INCHES NUT THREAD IN |
| thread_quantity_per_inch | 28 NUT THREAD |
| thread_series_designator | UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD |
| NSN | 5307-01-190-7239 |
| THREAD LENGTH | 0.370 INCHES NOMINAL STUD THREAD IN |
| THREAD LENGTH | 0.400 INCHES MINIMUM AND 0.500 INCHES MAXIMUM NUT THREAD IN |
| CRITICALITY CODE JUSTIFICATION | FEAT |
| STYLE DESIGNATOR | LOCKED IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE |
| OVERALL LENGTH | 1.652 INCHES MINIMUM AND 1.712 INCHES MAXIMUM IN |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| DISTANCE FROM END OF STUD END THREADS TO NUT END | 1.282 INCHES MINIMUM AND 1.342 INCHES MAXIMUM IN |
| NOMINAL THREAD SIZE | 0.375 INCHES STUD THREAD IN |
No substitute or cross-reference records for this part.