| PartNumber | AT452A | AT452B | AT452C |
| Description | Industrial Panel Mount Indicators / Switch Indicators BLACK RECTANGULAR INSERT FOR MB20, SCB | Industrial Panel Mount Indicators / Switch Indicators WHITE RECTANGULAR INSERT FOR MB20, SCB | Industrial Panel Mount Indicators / Switch Indicators RED RECTANGLE INSERT |
| Manufacturer | NKK Switches | NKK Switches | NKK Switches |
| Product Category | Industrial Panel Mount Indicators / Switch Indicators | Industrial Panel Mount Indicators / Switch Indicators | Industrial Panel Mount Indicators / Switch Indicators |
| RoHS | Y | Y | Y |
| Type | Lens | Lens | Lens |
| For Use With | Pushbutton Switches | Pushbutton Switches | Pushbutton Switches |
| Designed for | MB20, SCB Series | MB20, SCB Series | MB20, SCB Series |
| Termination Style | Snap In | Snap In | Snap In |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Width | 15.4 mm | 15.4 mm | 15.4 mm |
| Color | Black | White | Red |
| Height | 4 mm | 4 mm | 4 mm |
| Length | 19.4 mm | 19.4 mm | 19.4 mm |
| Material | Polycarbonate | Polycarbonate | Polycarbonate (PC) |
| Product | Indicators | Indicators | Indicators |
| Series | AT | AT | AT |
| Brand | NKK Switches | NKK Switches | NKK Switches |
| Product Type | Panel Mount Indicators / Switch Indicators | Panel Mount Indicators / Switch Indicators | Panel Mount Indicators / Switch Indicators |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Switch Accessories | Switch Accessories | Switch Accessories |
| Part # Aliases | AT-452-K | AT-452-W | AT-452-R |