| 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 | 0.610 INCHES MINIMUM AND |
| 0.640 INCHES MAXIMUM |
| DISTANCE FROM SERRATED PORTION TO STUD END | 0.675 INCHES MINIMUM AND |
| 0.705 INCHES MAXIMUM |
| DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD | 0.150 INCHES MINIMUM AND |
| 0.210 INCHES MAXIMUM |
| OVERALL LENGTH | 1.285 INCHES MINIMUM AND |
| 1.345 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| UNC STUD THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD |
| 0.375 INCHES STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| 2A STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| 16 STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.545 INCHES MINIMUM AND |
| 0.575 INCHES MAXIMUM NUT THREAD |
| 0.495 INCHES MINIMUM AND |
| 0.525 INCHES MAXIMUM STUD THREAD |
| LOCKING FEATURE | RING, LOCK SERRATED |
| HARDNESS RATING | 269.0 BRINELL STANDARD MINIMUM |
| SURFACE FINISH | 32.0 MICROINCHES NUT THD |
| SERRATION QUANTITY | 20 |
| SERRATION INCLUDED ANGLE | 102.0 DEGREES NOMINAL |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51989E106-10 |