| COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL NUT |
| CRITICALITY CODE JUSTIFICATION | SUPP |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 410 OVERALL |
| NOMINAL THREAD SIZE | 0.438 INCHES |
| NUT HEIGHT | 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM |
| NUT STYLE | PLATE |
| PLATE THICKNESS | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
| PLATE WIDTH | 1.610 INCHES MINIMUM AND 1.630 INCHES MAXIMUM |
| PRECIOUS MATERIAL | SILVER |
| SPECIAL FEATURES | SIX SLOTS EQUALLY SPACED ON ODOF NUT |
| SUPPLEMENTARY FEATURES | ITEM IS CRITICAL DUE TO FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY. |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | SILVER OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES | UNF |