| THREAD SERIES | UNF |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL NUT |
| STEEL COMP 1050 OR |
| STEEL COMP 1053 OR |
| STEEL COMP 1055 OR |
| STEEL COMP 1059 OR |
| STEEL COMP 1060 WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE J995 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE NUT |
| SAE J403 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | IAW DRAWING 12469218 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND |
| 50.0 ROCKWELL C MAXIMUM |
| NUT STYLE | FLAT |
| WASHER OUTSIDE DIAMETER | 0.395 INCHES MINIMUM AND |
| 0.406 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.160 INCHES NOMINAL |
| NUT HEIGHT | 0.117 INCHES MINIMUM AND |
| 0.130 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.362 INCHES MINIMUM AND |
| 0.375 INCHES MAXIMUM |
| SPECIAL FEATURES | HARDNESS RATING APPLIES TO WASHER;NO HARDNESS NOTED FOR NUT |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | HEX NUT AND EXTERNAL TOOTH LOCK WASHER ASSEMBLY |