| ASA STANDARD CHAIN NUMBER | B29.9-1958 |
| BORE TYPE | INVOLUTE SPLINE |
| DESIGN FORM | PLAIN |
| FURNISHED ITEMS | GUIDE |
| FACE WIDTH | 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM |
| GROOVE POSITION | IN CENTER |
| GROOVE QUANTITY | 1 |
| GUIDE TYPE | GROOVE |
| HARDNESS RATING TEST METHOD | NOT RATED |
| OUTSIDE DIAMETER | 1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763, CLASS 6, TYPE A FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763,CLASS 3,TYPE F,410 FED SPEC 2ND MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 416 OR STEEL COMP 410 |
| PITCH DIAMETER | 1.248 INCHES MINIMUM AND 1.268 INCHES MAXIMUM |
| SECURING METHOD | SLOTTED |
| SPECIAL FEATURES | TOOTH FORM PER ASA B29.9-1958,MAXCUMULATIVE PITCH ERR 0.001 |
| SPLINE PRESSURE ANGLE IN DEG | 30.0 |
| SPLINE QUANTITY | 21 |
| SPLINE LENGTH | 0.450 INCHES NOMINAL |
| SPLINE MAJOR DIAMETER | 0.9000 INCHES MINIMUM AND 0.9081 INCHES MAXIMUM |
| SPLINE MINOR DIAMETER | 0.8125 INCHES MINIMUM AND 0.8140 INCHES MAXIMUM |
| SPLINE PITCH DIAMETER | 0.4219 INCHES MINIMUM AND 0.8438 INCHES MAXIMUM |
| STYLE DESIGNATOR | PLAIN |
| SURFACE TREATMENT | PASSIVATE |
| TEETH QUANTITY PER ROW | 21 |
| TEETH ROW QUANTITY | 1 |
| TOOTH PITCH | 0.188 INCHES NOMINAL |