| HEAD STYLE | ELIPTICAL COUNTERSUNK |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A-167 ASSN STD SINGLE MATERIAL RESPONSE CAP |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE NUT |
| MATERIAL | STEEL COMP 304 NUT |
| MATERIAL | STEEL COMP 305 CAP |
| NOMINAL THREAD SIZE | 0.4375 INCHES |
| NUT DIAMETER | 0.5861 INCHES MINIMUM AND 0.5888 INCHES MAXIMUM |
| NUT GRIP RANGE | +0.401 TO 0.460 INCHES |
| NUT LENGTH | 1.597 INCHES NOMINAL |
| NUT STYLE | BLIND RIVET W/SMOOTH ROUND SHANK |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT,SELF LOCKING ELLIPTICAL HEAD,TENSION APPLICATION,250F |
| SHANK END TYPE | CLOSED |
| SPECIFICATION/STANDARD DATA | 81755-C21046 MANUFACTURERS SPECIFICATION CONTROL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM-A-967 ASSN STD SINGLE TREATMENT RESPONSE CAP |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM-A-967 ASSN STD SINGLE TREATMENT RESPONSE NUT |
| SURFACE TREATMENT | PASSIVATE CAP |
| SURFACE TREATMENT | PASSIVATE NUT |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |