| MATERIAL | IRON ALLOY 660 |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYLE DESIGNATOR | LOCKED IN |
| DISTANCE FROM SERRATED PORTION TO NUT END | 0.360 INCHES MINIMUM AND |
| 0.390 INCHES MAXIMUM |
| DISTANCE FROM SERRATED PORTION TO STUD END | 0.235 INCHES MINIMUM AND |
| 0.265 INCHES MAXIMUM |
| DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD | 0.045 INCHES MINIMUM AND |
| 0.075 INCHES MAXIMUM |
| OVERALL LENGTH | 0.595 INCHES MINIMUM AND |
| 0.655 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNC NUT THREAD |
| UNS STUD THREAD |
| NOMINAL THREAD SIZE | 0.138 INCHES NUT THREAD |
| 0.164 INCHES STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD QUANTITY PER INCH | 32 NUT THREAD |
| 32 STUD THREAD |
| THREAD PITCH DIAMETERS | 0.1446 TO 0.1461 INCHES STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.365 INCHES MINIMUM AND |
| 0.395 INCHES MAXIMUM NUT THREAD |
| 0.125 INCHES MINIMUM AND |
| 0.155 INCHES MAXIMUM STUD THREAD |
| LOCKING FEATURE | RING, LOCK SERRATED |
| HARDNESS RATING | 269.0 BRINELL STANDARD MINIMUM |
| SERRATION QUANTITY | 14 |
| SERRATION INCLUDED ANGLE | 101.0 DEGREES MINIMUM AND |
| 104.0 DEGREES MAXIMUM |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51989E302-6 |