SAE AS 4156B

This document has been declared Stabilized and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.This document defines the method for voltage identification by use of color coded insulators at the base of the lamp. Table 1 shows lamp part numbers and corresponding insulator colors.The part numbers shown are for example purpose only.Insulator colors are to be easily distinguishable as green, yellow, red, and white. Additional colors may be added by a revision process as required.

This product replaces:SAE AS 4156A - Color-Coded Incandescent Flange Base T1 and T-1 3/4 Lamps for Voltage Identification