| EXTERNAL KEYWAY LENGTH | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| EXTERNAL KEYWAY WIDTH | 0.500 INCHES NOMINAL |
| HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| HEAT TREATMENT | NORMALIZED |
| HOLE DIAMETER | 4.535 INCHES MINIMUM AND 4.545 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 5.625 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.127 INCHES MINIMUM AND 0.133 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | CENTER HOLE IS ROUND WITH FLATS 4.390 IN. ACROSS FLATS WITH TWO TAPPED HOLES 0.190-32 NF-2B THD |
| SURFACE FINISH | 90.0 MICROINCHES ALL SURFACES |