| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.340 INCHES NOMINAL | 
| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.080 INCHES NOMINAL | 
| EXTERNAL PREBENT KEY LENGTH | 0.098 INCHES NOMINAL | 
| EXTERNAL PREBENT KEY WIDTH | 0.220 INCHES NOMINAL | 
| HOLE DIAMETER | 0.380 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | 
| INTERNAL STRAIGHT KEY WIDTH | 0.145 INCHES MINIMUM AND 0.150 INCHES MAXIMUM | 
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11,6061-T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | 
| MATERIAL THICKNESS | 0.062 INCHES NOMINAL | 
| MATERIAL | ALUMINUM OVERALL | 
| OUTSIDE DIAMETER | 0.750 INCHES NOMINAL | 
| OVERALL DISTANCE INCLUDING KEYS | 0.795 INCHES NOMINAL | 
| STYLE DESIGNATOR | KEY | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE II,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | 
| SURFACE TREATMENT | ANODIZE OVERALL |