| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| OVERALL HEIGHT | 0.500 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 (UNS S66286) NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| NUT STYLE | DOUBLE HEXAGON |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT,SELF-LOCKING,EXTENDED WASHER,DOUBLE HEXAGON,CRES,180 KSI,450 DEGREES AND 800 DEGREES |
| SPECIAL FEATURES | LUBRICANT IS SOLID FILM LUBE IAW MIL-L-46010,TY I;LUBRICANT SHALL BE SPACE COMPATIBLE,KAL-GARD "FA" ONLY |
| SPECIFICATION/STANDARD DATA | 80205-NAS1805 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| WASHER OUTSIDE DIAMETER | 0.828 INCHES MAXIMUM |
| WASHER THICKNESS | 0.074 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TY II,VI OR VII FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 20 |