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| 
 American Standard SA1 & SK1 Attachments Roller Chains  | 
||||||
| 
 Chain  | 
 Pitch  | 
 I  | 
 Q  | 
 J  | 
 L  | 
 O  | 
| 
 P  | 
||||||
| 
 inches  | 
||||||
| 
 40  | 
 0.500  | 
 0.374  | 
 0.500  | 
 0.750  | 
 0.059  | 
 0.134  | 
| 
 50  | 
 0.625  | 
 0.500  | 
 0.626  | 
 0.994  | 
 0.080  | 
 0.217  | 
| 
 60  | 
 0.750  | 
 0.626  | 
 0.720  | 
 1.155  | 
 0.095  | 
 0.217  | 
| 
 80  | 
 1.000  | 
 0.752  | 
 0.969  | 
 1.366  | 
 0.128  | 
 0.268  | 
| 
 100  | 
 1.250  | 
 1.000  | 
 1.252  | 
 1.705  | 
 0.157  | 
 0.362  | 
| 
 120  | 
 1.500  | 
 1.126  | 
 1.437  | 
 2.031  | 
 0.189  | 
 0.386  | 
| 
 140  | 
 1.750  | 
 1.374  | 
 1.752  | 
 2.441  | 
 0.220  | 
 0.449  | 
| 
 160  | 
 2.000  | 
 1.500  | 
 2.000  | 
 2.750  | 
 0.252  | 
 0.516  | 
Note: check attachment dimensions before ordering since manufacturing standards may vary