| EXTERNAL PREBENT KEY LENGTH | 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
| HARDNESS RATING | 76.0 ROCKWELL SUPERFICIAL 30-T MAXIMUM |
| HEAT TREATMENT | AS FABRICATED |
| HOLE DIAMETER | 0.339 INCHES MINIMUM AND 0.354 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.325 INCHES MINIMUM AND 0.335 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| SURFACE FINISH | 32.0 MICROINCHES TOP |