| EXTENDED WASHER DIAMETER | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.089 INCHES MINIMUM AND 0.109 INCHES MAXIMUM |
| FASTENER LENGTH | 1.337 INCHES MINIMUM AND 1.367 INCHES MAXIMUM |
| GRIP DIAMETER | 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM |
| GRIP LENGTH | 0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM |
| HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.425 INCHES MINIMUM AND 0.445 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON W/HOLE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| NOMINAL THREAD DIAMETER | 0.438 INCHES |
| SPECIFICATION/STANDARD DATA | 26512-GB11GF7 MANUFACTURERS STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.640 INCHES MINIMUM AND 0.690 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 20 |
| WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |