| HARDNESS RATING | 29.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| OVERALL HEIGHT | 1.265 INCHES MINIMUM AND 1.327 INCHES MAXIMUM |
| MATERIAL | PLASTIC NYLON LOCKING INSERT |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4340 OR STEEL COMP 8630 NUT |
| NOMINAL THREAD SIZE | 1.125 INCHES |
| NUT STYLE | DOUBLE HEXAGON |
| SPECIAL FEATURES | SAGETY CRITCAL SCREW THD COMPONENT; COLOR CODE 13538,FED STD 595 |
| WASHER OUTSIDE DIAMETER | 1.556 INCHES NOMINAL |
| WASHER THICKNESS | 0.438 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 1.364 INCHES MINIMUM AND 1.377 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83286 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | PAINT OVERALL EXCEPT THREADS |
| TEMP RATING | 250.0 FAHRENHEIT MAXIMUM |
| TEST DATA DOCUMENT | 96906-MIL-STD-1949 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 12 |
| THREAD SERIES | UNJS |