| HARDNESS RATING | 45.0 ROCKWELL C NOMINAL |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS-S-6049 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 8740 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR MIL-S-5000 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT-6, SELF-ALIGNING ALLOY STEEL, ASSEMBLY |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.375 INCHES |
| NUT HEIGHT | 0.295 INCHES MINIMUM AND 0.305 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| SPECIAL FEATURES | HYDROGEN RELIEVED AT 375 DEGREE F FOR 23 HOURS MIN; AXIAL TENSILE STRENGTH LBS. MIN 15,200; WRENCH TORQUE IN LBS 530 |
| WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNJF |