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| PartNumber | AT4152-040 | AT4152-042 | AT4152-041 |
| Description | Switch Hardware TUBULAR KEY #040 FOR CKL KEYLOCKS | Switch Hardware ROUND KEY FOR CKL | Switch Hardware ROUND KEY FOR CKL |
| Manufacturer | NKK Switches | NKK Switches | NKK Switches |
| Product Category | Switch Hardware | Switch Hardware | Accessories |
| RoHS | Y | Y | - |
| Product | Hardware | Hardware | - |
| Type | Key | Key | - |
| For Use With | Keylock Switches | Keylock Switches | - |
| Designed for | CK Series | CK Series | - |
| Packaging | Bulk | Bulk | - |
| Height | 1.5 mm | 1.5 mm | - |
| Illumination | None | None | - |
| Length | 35.5 mm | 35.5 mm | - |
| Material | Brass | Brass | - |
| Series | CK AT | CK AT | - |
| Width | 19 mm | 19 mm | - |
| Brand | NKK Switches | NKK Switches | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Product Type | Switch Hardware | Switch Hardware | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Switch Accessories | Switch Accessories | - |
| Part # Aliases | AT-4152-040 | AT-4152-042 | - |
| For Use With Related Products | - | - | CKL Series Tubular Key |
| Color | - | - | - |
| Accessory Type | - | - | Replacement Key |
| Size Dimension | - | - | - |
| Thread Size | - | - | - |
| Shaft Size | - | - | - |