| DISTANCE ACROSS FLATS | 0.375 INCHES NOMINAL |
| OVERALL LENGTH | 3.155 INCHES NOMINAL |
| NOMINAL THREAD SIZE | 0.375 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.275 INCHES MINIMUM AND 0.285 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 0.094 INCHES NOMINAL |
| SHOULDER DIAMETER | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| SHOULDER LENGTH | 1.620 INCHES MINIMUM AND 1.625 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SPECIAL FEATURES | SECOND STEP 0.368 IN.MIN 0.373 IN. MAX DIA BY 0.093 IN. L BOTH ENDS |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE FINISH | 250.0 MICROINCHES OVERALL |
| THREAD CLASS | 2A NUT THREAD |
| THREAD CLASS | 2A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.578 INCHES NOMINAL NUT THREAD |
| THREAD LENGTH | 0.578 INCHES NOMINAL STUD THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| THREAD QUANTITY PER INCH | 16 STUD THREAD |
| THREAD QUANTITY PER INCH | 56 NUT THREAD |