| BALL SEAT RADIUS | 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR AMS5737 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8740 OR STEEL COMP 4340 OR IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.562 INCHES |
| NUT HEIGHT | 0.669 INCHES MINIMUM AND 0.679 INCHES MAXIMUM |
| NUT STYLE | SINGLE BALL SEAT, DOUBLE HEXAGON |
| SPECIAL FEATURES | NUT SUPPLIED WITH WASHER |
| SPECIFICATION/STANDARD DATA | 80205-NAS1727 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| WIDTH ACROSS FLATS | 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| TEMP RATING | 800.0 FAHRENHEIT MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 2B |
| THREAD SERIES | UNF |
| THREAD QUANTITY PER INCH | 18 |