| BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED | K3743 |
| BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED | K3743 |
| BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED | K3743 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| COUNTERBORE DIAMETER | 0.665 INCHES NOMINAL NUT |
| NUT STYLE | SLOTTED, HEXAGON |
| NUT HEIGHT | 0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| NUT COUNTERBORE DEPTH | 0.010 INCHES MAXIMUM NUT |
| WIDTH ACROSS FLATS | 0.930 INCHES MINIMUM AND 0.938 INCHES MAXIMUM |
| THREAD SERIES | UNF |
| THREAD QUANTITY PER INCH | 18 |
| NOMINAL THREAD SIZE | 0.625 INCHES |
| BEARING SURFACE TYPE | FLAT |
| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes NUT (1), PLAIN, CASTELLATED, HEXAGON. |
