| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | OVERSIZE SELF-ALIGNING NUT ASSEMBLY 12 PT. |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.2500 INCHES |
| NUT STYLE | DOUBLE HEXAGON |
| OVERALL HEIGHT | 0.340 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2410 ASSN STD 1ST TREATMENT RESPONSE AND QQ-P-36 FED SPEC 2ND TREATMENT RESPONSE AND QQ-P-416 TYPE II CLASS 3 FED SPEC 3RD TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | SILVER AND PASSIVATE AND CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WASHER OUTSIDE DIAMETER | 0.587 INCHES MINIMUM AND 0.597 INCHES MAXIMUM |
| WASHER THICKNESS | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |