| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| III SURFACE FINISH | 32.0 MICROINCHES SHOULDER BEARING SURFACE |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.250 INCHES STUD THREAD |
| NOMINAL THREAD SIZE | 0.190 INCHES NUT THREAD |
| OVERALL LENGTH | 1.400 INCHES NOMINAL |
| SHOULDER LENGTH | 0.200 INCHES NOMINAL |
| SPECIAL FEATURES | 180,000 PSI MIN TS; HOLE 0.061 IN. MIN AND 0.065 IN. MAX DIA LOCATED 0.160 NOM IN. FROM STUD END |
| STYLE DESIGNATOR | SHOULDERED AND STEPPED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE 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 | 0.650 INCHES NOMINAL STUD THREAD |
| THREAD LENGTH | 0.468 INCHES NOMINAL NUT THREAD |
| THREAD QUANTITY PER INCH | 20 STUD THREAD |
| THREAD QUANTITY PER INCH | 32 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNC STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| DISTANCE ACROSS FLATS | 0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |