| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 13.0 MILLIMETERS NOMINAL |
| ANGLE BETWEEN EXTERNAL KEYS | 60.0 DEGREES NOMINAL |
| EXTERNAL KEY QUANTITY | 2 |
| EXTERNAL PREBENT KEY LENGTH | 3.5 MILLIMETERS NOMINAL |
| EXTERNAL PREBENT KEY WIDTH | 5.0 MILLIMETERS NOMINAL |
| EXTERNAL TAPERED KEY WIDTH | 11.0 MILLIMETERS NOMINAL |
| HOLE DIAMETER | 12.50 MILLIMETERS MINIMUM AND 12.77 MILLIMETERS MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | NF A 36-401 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 1.0 MILLIMETERS NOMINAL |
| III MATERIAL | ACIER A37XE-F0111 |
| MINIMUM TENSILE STRENGTH | 370 NEWTONS PER SQUARE MILLIMETER |
| OUTSIDE DIAMETER | 20.0 MILLIMETERS NOMINAL |
| OVERALL DISTANCE INCLUDING KEYS | 30.0 MILLIMETERS NOMINAL |
| SPLIT KEY LENGTH | 7.0 MILLIMETERS NOMINAL |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NF L 09-763 CODE LE NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |