| PartNumber | AT4166DB | AT4166CB | AT4166FB |
| Description | Switch Bezels / Switch Caps SQ AMBR LNS/WHT DIFF | Switch Bezels / Switch Caps SQ RED LENS/WHT DIFF | Switch Bezels / Switch Caps SQ GRN LENS/WHT DIFF |
| Manufacturer | NKK Switches | NKK Switches | - |
| Product Category | Switch Bezels / Switch Caps | Switch Bezels / Switch Caps | - |
| RoHS | Y | Y | - |
| Product | Caps | Caps | - |
| Type | Button | Button | - |
| For Use With | Pushbutton Switches, Miniature | Pushbutton Switches, Miniature | - |
| Designed for | HB Series | HB Series | - |
| Color | Amber, White | Red, White | - |
| Packaging | Bulk | - | - |
| Height | 4.5 mm | 4.5 mm | - |
| Illumination | Illuminated | Illuminated | - |
| Length | 7.4 mm | 7.4 mm | - |
| Material | Polycarbonate (PC) | Polycarbonate (PC) | - |
| Series | HB AT | HB AT | - |
| Brand | NKK Switches | NKK Switches | - |
| Product Type | Switch Bezels / Switch Caps | Switch Bezels / Switch Caps | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Switch Accessories | Switch Accessories | - |
| Part # Aliases | AT-4166-Y | AT-4166-R | - |
| Unit Weight | 0.016014 oz | 0.030089 oz | - |