| COUNTERBORE DIAMETER | 0.407 INCHES MINIMUM AND 0.417 INCHES MAXIMUM WASHER |
| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | FREE-RUNNING ALL METAL DESIGN |
| LUBRICATION | SOLUBLE LUBRICANT |
| OVERALL HEIGHT | 0.341 INCHES MINIMUM AND 0.361 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5085 UNS G10500 ASSN STD SINGLE MATERIAL RESPONSE WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-6049 UNS G87400 MIL SPEC SINGLE MATERIAL RESPONSE NUT |
| MATERIAL | STEEL COMP 1050 WASHER |
| MATERIAL | STEEL COMP 8740 NUT |
| NOMINAL THREAD SIZE | 0.375 INCHES |
| NUT COUNTERBORE DEPTH | 0.072 INCHES MINIMUM AND 0.087 INCHES MAXIMUM WASHER |
| NUT STYLE | FLAT WITH TURNED UP EDGE |
| WASHER OUTSIDE DIAMETER | 0.660 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| TEMP RATING | 450.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNJF |