The ND and the NDe tailpieces are the same since early 2017. The part numbers for the tailpiece options are shown below:
| DESCRIPTION | SUFFIX | TAILPIECE/ KIT P/N |
| DRIVER, SCHLAGE KIK/STANDARD | PD | N523-022 |
| DRIVER, FULL SIZE IC | RD, JD, TD | N523-127 |
| DRIVER, SFIC CYLINDER | GD, HD | 09-774 |
| TAILPIECE, ND, SARGENT KEY IN LEVER CYLINDER | LD SAR | 09-060 |
| DRIVER,CYLINDER, ND YALE FSIC (6P) | JD YA6 | 09-061 |
| TAILPIECE, ND, CORBIN RUSSWIN FULL SIZE INTERCHANGEABLE CYLINDER | JD CO6 | 09-062 |
| TAILPIECE, ND, SARGENT FULL SIZE INTERCHANGEABLE CYLINDER | JD SAR | 09-063 |
| TAILPIECE, CORB RUSS KIL CYLINDER | LD CO6 | 10-140 |
| TAILPIECE, CORB RUSS 7P FSIC CYLINDER | JD CO7 | 10-141 |
| TAILPIECE, YALE 7P FSIC CYLINDER | JD YA7 | 10-142 |
| TAILPIECE, MED32 FSIC CYLINDER | JD MED | 10-143 |
| DRIVER, SFIC, SARGENT XC | N/A | XN12-292 |
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