| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.395 INCHES NOMINAL |
| HOLE DIAMETER | 1.020 INCHES NOMINAL |
| INTERNAL KEY QUANTITY | 1 |
| INTERNAL STRAIGHT KEY WIDTH | 0.179 INCHES MINIMUM AND 0.184 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4130 OVERALL |
| OUTSIDE DIAMETER | 1.560 INCHES NOMINAL |
| SPECIAL FEATURES | HEAT TREAT 90,000 PSI-UTS PER MIL-H-6875 |
| STYLE DESIGNATOR | KEY |
| SURFACE FINISH | 125.0 MICROINCHES ALL SURFACES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-23377 MIL SPEC 1ST TREATMENT RESPONSE AND FED-STD-595 COLOR 17875 FED STD 2ND TREATMENT RESPONSE AND QQ-P-416 TY 2 CL 1 FED SPEC 3RD TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PRIMER AND ENAMEL AND CADMIUM OVERALL |