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| PartNumber | 591621-1 | 591621-5 | 591621-4 |
| Description | Junction System Tools & Accessories RAIL,FIXED,F/T LIGHT WEIGHT | Junction Systems Junction System Tools & Accessories RAIL FIXED F/T LIGHT WEIGHT | Junction Systems Junction System Tools & Accessories RAIL FIXED F/T LIGHT WEIGHT |
| Manufacturer | TE Connectivity | TE Connectivity Aerospace, Defense and Marine | TE Connectivity Aerospace, Defense and Marine [MIL] |
| Product Category | Junction System Tools & Accessories | Terminal Junction Systems | Terminal Junction Systems |
| MIL Type | MIL-T-81714 | MIL-T-81714 | MIL-T-81714 |
| Product | Module Mounting Tracks - Lightweight | Module Mounting Tracks - Lightweight | Module Mounting Tracks - Lightweight |
| For Use With | Feedback Modules | Feedback Modules | Feedback Modules |
| Number of Positions | 1 Position | 5 Position | 4 Position |
| Length | 1.781 in | 3.341 in | 2.951 in |
| Series | Terminal Junction System | TJS (Terminal Junction System) | Military, MIL-T-81714 Series II, TJS |
| Brand | TE Connectivity / AMP | - | - |
| Product Type | Junction System Tools & Accessories | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Junction Systems | - | - |
| Part # Aliases | 591621-1 | - | - |
| Type | - | Rail | Rail |
| Part Aliases | - | M81714 M81714/16-4 | M81714 M81714/16-3 |
| Size Dimension | - | 3.341" L (84.86mm) | 2.951" L (74.96mm) |
| Contact Size | - | ||
| Module Capacity | - | 5 | 4 |