NUT,
| MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 96906 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| NUT STYLE | CASTELLATED, HEXAGON |
| NUT HEIGHT | 0.562 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 1.688 INCHES MINIMUM AND 1.704 INCHES MAXIMUM |
| THREAD SERIES | UN |
| THREAD QUANTITY PER INCH | 16 |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| NOMINAL THREAD SIZE | 1.438 INCHES |
| BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| MATERIAL | STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD 1ST MATERIAL RESPONSE OVERALL OR SAE ASSN STD 1ST MATERIAL RESPONSE OVERALL OR AISI ASSN STD 2ND MATERIAL RESPONSE OVERALL OR SAE ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| RATED AVERAGE LIFE | HOURS |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes NUT (1), PLAIN, SLOTTED, HEXAGON. |
