| OVERALL HEIGHT | 0.609 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP 4145 OVERALL |
| NOMINAL THREAD SIZE | 0.750 INCHES |
| NUT STYLE | HEXAGON |
| SPECIAL FEATURES | 0.156 IN. W BY 0.188 IN. DEEP 6 SLOTS EQUALLY SPACED ON FACE OF HEX |
| WASHER OUTSIDE DIAMETER | 1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM |
| WASHER THICKNESS | 0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 1.109 INCHES MINIMUM AND 1.141 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-12968 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 16 |
| THREAD SERIES | UNF |