| OVERALL HEIGHT | 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6323 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6324 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8735 OR STEEL COMP 8740 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT STYLE | HEXAGON |
| WASHER OUTSIDE DIAMETER | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| WASHER THICKNESS | 0.094 INCHES MINIMUM AND 0.109 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES | UNF |