| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 OR AMS5659,TY 1 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 630 |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | STUD |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.500 INCHES NUT THREAD A |
| NOMINAL THREAD SIZE | 0.500 INCHES NUT THREAD B |
| OVERALL LENGTH | 3.75 INCHES NOMINAL |
| SHOULDER DIAMETER | 0.750 INCHES NOMINAL |
| SHOULDER LENGTH | 0.190 INCHES NOMINAL |
| SPECIAL FEATURES | PRECIPITATION HARDEN TO 155-175 KSI PER MIL-H-6875 OR BPS4140 |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BPS4007,PROCESS I MFR REF 1ST TREATMENT RESPONSE OR QQ-P-35 FED SPEC 2ND TREATMENT RESPONSE OR ASTM A967 ASSN STD 3RD TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| TEST DATA DOCUMENT | 96906-MIL-STD-6866 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). OR 81346-ASTM-E-1417,TY I,METHOD B OR D SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| THREAD CLASS | 2A NUT THREAD B |
| THREAD CLASS | 3A NUT THREAD A |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD A |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD B |
| THREAD LENGTH | 0.670 INCHES NOMINAL NUT THREAD A |
| THREAD LENGTH | 2.22 INCHES NOMINAL NUT THREAD B |
| THREAD QUANTITY PER INCH | 13 NUT THREAD B |
| THREAD QUANTITY PER INCH | 20 NUT THREAD A |
| THREAD SERIES DESIGNATOR | UNC NUT THREAD B |
| THREAD SERIES DESIGNATOR | UNJF NUT THREAD A |