The HNAV-27 is an aluminum nameplate designed for use with IDEC TWTD Series pushbuttons and control devices. It is manufactured from 0.031" aluminum with white letters engraved on a black background, available in yellow color only. The nameplate supports customizable engraving with standard legend codes (such as "Emergency Stop") or custom text, with letter sizes of 7/64" (up to 16 characters) or 1/8" (up to 13 characters). The HNAV-27 is commonly used to label emergency stop buttons, selector switches, and other industrial control devices, providing clear operator identification and compliance with standard control panel labeling practices.