| PartNumber | AT4146-021 | AT4146-020 | AT4146-022 |
| Description | Switch Hardware TUBULAR KEY #021 FOR CKM KEYLOCKS | Switch Hardware TUBULAR KEY #020 FOR CKM KEYLOCKS | Switch Hardware TUBULAR KEY #022 FOR CKM KEYLOCKS |
| 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 | - | - |
| Color | Black | Black | - |
| Height | 3.5 mm | 3.5 mm | - |
| Illumination | None | None | - |
| Length | 33.5 mm | 33.5 mm | - |
| Material | Brass | Brass | - |
| Series | CK AT | CK AT | - |
| Width | 26 mm | 26 mm | - |
| Brand | NKK Switches | NKK Switches | - |
| Product Type | Switch Hardware | Switch Hardware | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Switch Accessories | Switch Accessories | - |
| Part # Aliases | AT-4146-021 | AT-4146-020 | - |
| For Use With Related Products | - | - | CKM Series Tubular Key |
| Accessory Type | - | - | Replacement Key |
| Size Dimension | - | - | - |
| Thread Size | - | - | - |
| Shaft Size | - | - | - |