| DISTANCE ACROSS FLATS | 0.438 INCHES NOMINAL |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 1.310 INCHES MINIMUM AND 1.370 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| NOMINAL THREAD SIZE | 0.190 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.190 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.184 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SHOULDER LENGTH | 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| STUD END SHANK DIAMETER | 0.184 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| STUD END SHANK LENGTH | 0.030 INCHES NOMINAL |
| STYLE DESIGNATOR | SHOULDERED |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD LENGTH | 0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.400 INCHES MINIMUM AND 0.460 INCHES MAXIMUM NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |
| THREAD QUANTITY PER INCH | 32 NUT THREAD |
| THREAD QUANTITY PER INCH | 32 STUD THREAD |