| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 1.250 INCHES |
| THREAD QUANTITY PER INCH | 12 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 1035 OR |
| STEEL COMP 1042 OR |
| STEEL COMP 1050 OR |
| STEEL COMP 1137 OR |
| STEEL COMP 4027 OR |
| STEEL COMP 4037 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5080 ASSN STD 1ST MATERIAL RESPONSE OR |
| QQ-S-700 FED SPEC 2ND MATERIAL RESPONSE OR |
| AMS5085 ASSN STD 3RD MATERIAL RESPONSE OR |
| AMD5024 ASSN STD 4TH MATERIAL RESPONSE OR |
| AMS5020 ASSN STD 5TH MATERIAL RESPONSE OR |
| ASTMA322 ASSN STD 6TH MATERIAL RESPONSE OR |
| ASTMA322 ASSN STD 7TH MATERIAL RESPONSE OR |
| AMS6322 ASSN STD 8TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| NUT STYLE | CASTELLATED HEXAGON |
| WASHER OUTSIDE DIAMETER | 1.875 INCHES NOMINAL |
| OVERALL HEIGHT | 1.235 INCHES MINIMUM AND |
| 1.265 INCHES MAXIMUM |
| WASHER THICKNESS | 0.140 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 1.364 INCHES MINIMUM AND |
| 1.383 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| TEMP RATING | 450.0 DEG FAHRENHEIT NOMINAL |
| BEARING SURFACE FINISH | 125.0 MICROINCHES |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 96906 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS14144 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS14144L20 |