| BEARING SURFACE TYPE | CHAMFERED |
| COUNTERSINK ANGLE | 88.0 DEGREES MINIMUM BASE |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 30.0 MILLIMETERS |
| NUT HEIGHT | 33.2 MILLIMETERS MAXIMUM |
| NUT STYLE | HEXAGON |
| SPECIAL FEATURES | ITEM IS ACCEPTABLE WITHOUT PASSIVATION SURFACE TREATMENT |
| WIDTH ACROSS FLATS | 45.38 MILLIMETERS MINIMUM AND 46.00 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD PITCH IN MILLIMETERS | 2.00 |
| THREAD TOLERANCE CLASS | 5H INTERNAL |
| THREAD SERIES | ISO M |