| EXTENDED WASHER DIAMETER | 0.4280 INCHES MINIMUM AND 0.4480 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.0600 INCHES MINIMUM |
| FASTENER LENGTH | 0.6900 INCHES MINIMUM AND 0.7100 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| GRIP LENGTH | 0.1170 INCHES MINIMUM AND 0.1980 INCHES MAXIMUM |
| HEAD HEIGHT | 0.2930 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5662, UNS N07718 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, MACHINE, DOUBLE HEX, EXTENDED WASHER HEAD, CLOSE TOLERANCE, SHANK, UNS N07718, 185 KSI MINIMUM, .2500-28UNJF-3A, STRESS RUPTURE RESISTANT |
| MATERIAL | NICKEL ALLOY OVERALL |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| SPECIFICATION/STANDARD DATA | 0U583-AS3418 MANUFACTURERS SPECIFICATION |
| SURFACE FINISH | 125.0 MICROINCHES GRIP |
| SURFACE FINISH | 125.0 MICROINCHES PRIMARY WASHER |
| SURFACE FINISH | 125.0 MICROINCHES THREADS |
| SURFACE FINISH | 250.0 MICROINCHES BEARING SURFACE OF HEAD |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.5020 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.3125 INCHES NOMINAL |