| DISTANCE ACROSS FLATS | 0.625 INCHES NOMINAL |
| NUT END SHANK DIAMETER | 0.374 INCHES NOMINAL |
| NUT END SHANK LENGTH | 0.930 INCHES NOMINAL |
| OVERALL LENGTH | 3.630 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE |
| NOMINAL THREAD SIZE | 0.375 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.375 INCHES STUD THREAD |
| SHOULDER LENGTH | 0.050 INCHES NOMINAL |
| SPECIAL FEATURES | 5/8 IN. SHOULDER HAS FOUR SIDES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SHOULDER DIAMETER | 0.800 INCHES NOMINAL |
| STUD END SHANK DIAMETER | 0.546 INCHES NOMINAL |
| STUD END SHANK LENGTH | 0.620 INCHES NOMINAL |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE FINISH | 63.0 MICROINCHES SHANK |
| SURFACE FINISH | 63.0 MICROINCHES WRENCHING FACILITY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | P.S. 13145,TY 2 CL 3 FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.660 INCHES NOMINAL NUT THREAD |
| THREAD LENGTH | 0.590 INCHES NOMINAL STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| THREAD QUANTITY PER INCH | 24 STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |