| PartNumber | AT4027JB | AT4027JE | AT4027JC |
| Description | Switch Bezels / Switch Caps RCT CLR LNS/WHT FLTR LB W/ INCNDSCNT LAMP | Switch Bezels / Switch Caps RCT CLR LNS/YLW FLTR LB W/ INCNDSCNT LAMP | Switch Bezels / Switch Caps RCT CLR LNS/RED FLTR LB W/ INCNDSCNT LAMP |
| Manufacturer | NKK Switches | NKK Switches | - |
| Product Category | Switch Bezels / Switch Caps | Switch Bezels / Switch Caps | - |
| RoHS | Y | Y | - |
| Type | Cap, Rectangular | Cap, Rectangular | - |
| For Use With | Pushbutton Switches | Pushbutton Switches | - |
| Designed for | LB Series | LB Series | - |
| Color | Clear, White | Clear, Yellow | - |
| Height | 11 mm | 11 mm | - |
| Length | 19.4 mm | 19.4 mm | - |
| Material | Polycarbonate (PC) | Polycarbonate (PC) | - |
| Series | M | LB AT | - |
| Termination Style | Snap On | Snap On | - |
| Width | 13.2 mm | 13.2 mm | - |
| Brand | NKK Switches | NKK Switches | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Product Type | Switch Bezels / Switch Caps | Switch Bezels / Switch Caps | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Switch Accessories | Switch Accessories | - |
| Part # Aliases | AT-4027-W | AT-4027-Y | - |