| PartNumber | AT506M | AT507M | AT507H |
| Description | Switch Hardware 12MM LOCKING RING | Switch Hardware METRIC LOCKING RING | Switch Hardware IMPERIAL THREADS |
| Manufacturer | NKK Switches | NKK Switches | NKK Switches |
| Product Category | Switch Hardware | Switch Hardware | Switch Hardware |
| RoHS | Y | Y | Y |
| Product | Hardware | - | Hardware |
| Type | Washer | Ring | Washer |
| For Use With | Pushbutton Switches | Various Switches | Various Switches |
| Designed for | M, MB20, P, SB Series | D2, DB, EB, M, MB20, MB24, MB25, MR, P Series | D2, DB, EB, M, MB20, MB24, MB25, MR, P Series |
| Packaging | Bulk | - | - |
| Height | 1 mm | 0.9 mm | 0.8 mm |
| Illumination | None | - | None |
| Material | Steel with Zinc and Chromate | Steel with Zinc Chromate | Steel with Zinc and Chromate |
| Series | AT | AT | AT |
| Width | 18.2 mm | 12 mm | 12 mm |
| Brand | NKK Switches | NKK Switches | NKK Switches |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Product Type | Switch Hardware | Switch Hardware | Switch Hardware |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Switch Accessories | Switch Accessories | Switch Accessories |
| Part # Aliases | AT-506 | - | AT-534-C4G |
| Unit Weight | 0.043493 oz | - | 0.016014 oz |
| Features | - | Metric | Non-metric |