751678-1-1: NUT,SELF-LOCKING,INTERNAL WRENCH.
NUT,SELF-LOCKING,INTERNAL WRENCH. Key specifications include material: STEEL COMP 4340 OVERALL, nut_height: 0.975 INCHES NOMINAL IN, nut_diameter: 1.000 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.
Government catalog under NSN 5310-01-210-9449, 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 4340 OVERALL |
| nut_height | 0.975 INCHES NOMINAL IN |
| nut_diameter | 1.000 INCHES NOMINAL IN |
| thread_class | 3B |
| thread_series | UNF |
| hardness_rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| locking_feature | PREVAILING TORQUE WITH METALLIC INSERT |
| thread_direction | RIGHT-HAND |
| surface_treatment | CADMIUM OVERALL |
| nominal_thread_size | 0.250 INCHES IN |
| width_between_flats | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| internal_drive_style | SOCKET |
| NSN | 5310-01-210-9449 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | HS74 TYPE 2,CLASS 2 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES | UNF |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 0.250 INCHES IN |
| NUT DIAMETER | 1.000 INCHES NOMINAL IN |
| WIDTH BETWEEN FLATS | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| LOCKING FEATURE | PREVAILING TORQUE WITH METALLIC INSERT |
| NUT HEIGHT | 0.975 INCHES NOMINAL IN |
No substitute or cross-reference records for this part.