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| PartNumber | 1663556-1 | 1663557-1 | 1663556 |
| Description | Rack & Panel Connectors RECPT ASSY SZ 2 ARINC 600 | Rack & Panel Connectors PLUG ASSY SZ 2 ARINC 600 | Heavy Duty Power Connectors Pneumatic Fem Cont. W/Valve, 3.0 mm |
| Manufacturer | TE Connectivity | TE Connectivity | Phoenix Contact |
| Product Category | Rack & Panel Connectors | Rack & Panel Connectors | Heavy Duty Connectors - Contacts |
| Series | ARINC 600 | ARINC 600 | HEAVYCONR M |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | - |
| Product Type | Rack & Panel Connectors | Rack & Panel Connectors | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Backplane Connectors | Backplane Connectors | - |
| Tradename | ARINC | ARINC | - |
| Part # Aliases | 1663556-1 | 1663557-1 | - |
| RoHS | - | N | - |
| Type | - | - | Pneumatic |
| Packaging | - | - | Bulk |
| Contact Finish | - | - | - |
| Pin or Socket | - | - | Socket Module |
| Contact Termination | - | - | - |
| Wire Gauge | - | - | - |
| Contact Finish Thickness | - | - | - |