| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.2500 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 1050 OR |
| STEEL COMP 4130 NUT |
| ALUMINUM ALLOY 7075 WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5085 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS6250 OR AMS6370 ASSN STD 2ND MATERIAL RESPONSE NUT |
| AMS-QQ-A-225/9 ASSN STD SINGLE MATERIAL RESPONSE WASHER |
| SURFACE TREATMENT | CADMIUM NUT |
| ANODIZE WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MS-QQ-P-416 TYPE II CLASS I ASSN STD SINGLE TREATMENT RESPONSE NUT |
| NUT HEIGHT | 0.425 INCHES MAXIMUM |
| LUBRICATION | DRY FILM LUBRICANT |
| SPECIAL FEATURES | SEAL IS MADE OF FLUOROSILICONE RUBBER PER MIL-DTL-25988, TYPE II CLASS 1 GRADE 60 COLOR BLUE; DOME IS MADE OF A286 PER AMS5525, FINISH OF PASSIVATE PER AMS 2700, TYPE II; NUT INCLUDES CAP WITH A HEIGHT OF 0.760 INCH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT, SELF-LOCKING, DOME, SELF-SEALING, SNAP -ON |