SAE AS4156D

Color-Coded Incandescent Flange Base T-1 and T-1 3/4 Lamps for Voltage Identification

STANDARD published on 1.12.2025

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The information about the standard:

Designation standards: SAE AS4156D
Publication date standards: 1.12.2025
Country: American technical standard
Category: Technical standards SAE

Annotation of standard text SAE AS4156D :

This document specifies that black is the only color that can be used for the insulator at the bottom of the base of T-1 and T-1 ? Flanged Base lamps.

SUBFILE: Aerospace
TYPE OF DOCUMENT: Aerospace Standard

Stabilized: Dec 2025 SAE - Standards Status Definitions