| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6414 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR AMS 6322 NATIONAL STD/SPEC 2ND MATERIAL RESPONSE OR AMS6325 NATIONAL STD/SPEC 3RD MATERIAL RESPONSE OR AMS6327 NATIONAL STD/SPEC 4TH MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4340 OR STEEL COMP 8740 |
| III HARDNESS RATING | 39.5 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | STUD, STRAIGHT VENTED, .3125-18 X .3125-24, 180 KSI |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.3125 INCHES NUT THREAD A |
| NOMINAL THREAD SIZE | 0.3125 INCHES NUT THREAD B |
| OVERALL LENGTH | 1.320 INCHES NOMINAL |
| SPECIAL FEATURES | HEAT TREAT: 180-200 KSI ULTIMATE TENSILE STRENGTH PER AMS-H-6875 OR AMS2759; END B HAS A 0.60-.078 DIA THRU; |
| SPECIFICATION/STANDARD DATA | 97499-120-236 MANUFACTURERS STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-DTL-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |
| THREAD CLASS | 3A NUT THREAD A |
| THREAD CLASS | 3A NUT THREAD B |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD A |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD B |
| THREAD LENGTH | 0.480 INCHES NOMINAL NUT THREAD B |
| THREAD LENGTH | 0.781 INCHES NOMINAL NUT THREAD A |
| THREAD PITCH DIAMETERS | +0.2930 TO 0.2945 INCHES NUT THREAD A |
| THREAD PITCH DIAMETERS | +0.2930 TO 0.2945 INCHES NUT THREAD B |
| THREAD QUANTITY PER INCH | 18 NUT THREAD A |
| THREAD QUANTITY PER INCH | 24 NUT THREAD B |
| THREAD SERIES DESIGNATOR | UNJF NUT THREAD B |
| THREAD SERIES DESIGNATOR | UNJS NUT THREAD A |