| EXTENDED WASHER DIAMETER | 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM | 
| EXTENDED WASHER THICKNESS | 0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM | 
| FASTENER LENGTH | 1.641 INCHES MINIMUM AND 1.671 INCHES MAXIMUM | 
| GRIP LENGTH | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | 
| HEAD HEIGHT | 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM | 
| HEAD STYLE | DOUBLE HEXAGON W/HOLE | 
| HOLE CONFIGURATION STYLE | HEXAGON LONGITUDINAL HOLE | 
| HOLE DIAMETER | 0.350 INCHES MINIMUM AND 0.390 INCHES MAXIMUM | 
| HOLE QUANTITY | 1 | 
| HOLE TYPE | DRILLED | 
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | 
| MATERIAL | NICKEL ALLOY 718 OVERALL | 
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | 
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | 
| NOMINAL THREAD DIAMETER | 0.500 INCHES | 
| THREAD CLASS | 3A | 
| THREAD DIRECTION | RIGHT-HAND | 
| THREAD LENGTH | 0.881 INCHES MINIMUM AND 0.931 INCHES MAXIMUM | 
| THREAD QUANTITY PER INCH | 20 | 
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) | 
| WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |