| MATERIAL | STEEL COMP 302 OR |
| IRON ALLOY 660 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-423 FED SPEC 1ST MATERIAL RESPONSE OR |
| AMS 5734D-76 ASSN STD 2ND MATERIAL RESPONSE |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A380-78 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| STYLE DESIGNATOR | LOCKED IN |
| DISTANCE FROM END OF STUD END THREADS TO NUT END | 0.908 INCHES MINIMUM AND |
| 0.968 INCHES MAXIMUM |
| OVERALL LENGTH | 1.313 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNJF NUT THREAD |
| UNC STUD THREAD |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| 0.375 INCHES STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| 2A STUD THREAD |
| THREAD QUANTITY PER INCH | 28 NUT THREAD |
| 16 STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.511 INCHES MINIMUM AND |
| 0.571 INCHES MAXIMUM NUT THREAD |
| 0.360 INCHES MINIMUM AND |
| 0.390 INCHES MAXIMUM STUD THREAD |
| LOCKING FEATURE | KEY INSERTS |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | STUD, LOCKED IN KEY |