| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 1008 OR |
| STEEL COMP 1010 OR |
| STEEL COMP 1015 OR |
| STEEL COMP 1018 OR |
| STEEL COMP 1021 OR |
| STEEL COMP 1022 OR |
| STEEL COMP 1030 OR |
| STEEL COMP 1035 OR |
| STEEL COMP 1045 OR |
| STEEL COMP 1110 OR |
| STEEL COMP 1117 OR |
| STEEL COMP 1118 OR |
| STEEL COMP 1137 OR |
| STEEL COMP 1213 OR |
| STEEL COMP 8740 OVERALL |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| BEARING SURFACE TYPE | CHAMFERED OR |
| WASHER FACED |
| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3B |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A29 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS 5050 ASSN STD 2ND MATERIAL RESPONSE OR |
| AMS 5060 ASSN STD 3RD MATERIAL RESPONSE OR |
| AMS 5069 ASSN STD 4TH MATERIAL RESPONSE OR |
| AMS 5070 ASSN STD 5TH MATERIAL RESPONSE OR |
| AMS 5080 ASSN STD 5TH MATERIAL RESPONSE OR |
| AMS 5022 ASSN STD 7TH MATERIAL RESPONSE OR |
| AMS 5024 ASSN STD 8TH MATERIAL RESPONSE OR |
| AMS 5020 ASSN STD 9TH MATERIAL RESPONSE OR |
| AMS 6322 ASSN STD 10TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| NUT HEIGHT | 0.240 INCHES MINIMUM AND |
| 0.328 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND |
| 0.439 INCHES MAXIMUM |
| LUBRICATION | SOLUBLE LUBRICANT |
| TEMP RATING | 450.0 DEG FAHRENHEIT NOMINAL |
| BEARING SURFACE FINISH | 125.0 MICROINCHES |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS21045-4S |