| FIRST FLAT LENGTH | 1.175 INCHES MINIMUM AND 1.180 INCHES MAXIMUM |
| FLAT HEIGHT | 0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 5130 OR STEEL COMP 8630 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | KEY,HORIZONTAL SHAFT |
| PROPRIETARY CHARACTERISTICS | PACS |
| OVERALL HEIGHT | 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM |
| OVERALL LENGTH | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM |
| OVERALL WIDTH | 0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM |
| RADIUS | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| ROUND END LENGTH | 0.450 INCHES NOMINAL |
| STYLE DESIGNATOR | STEPPED |