| BEARING SURFACE FINISH | 125.0 MICROINCHES |
| BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | SOLUBLE LUBRICANT |
| 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 |
| 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 |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT HEIGHT | 0.240 INCHES MINIMUM AND 0.328 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| TEMP RATING | 450.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES | UNJF |
| WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |