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| PartNumber | 3-521057-2 | 3-521072-2 | 3-521013-2 |
| Description | Terminals ULTRA-FAST PLUS Reel of 1400 | Terminals RCPT ULTRA-FAST 250 | Terminals .25 ULTRA-FAST FLG Reel of 1700 |
| Manufacturer | TE Connectivity | TE Connectivity | - |
| Product Category | Terminals | Terminals | - |
| RoHS | Y | Y | - |
| Product | Quick Disconnects | Quick Disconnects | - |
| Type | - | - | - |
| Stud / Tab Size | 6.35 mm x 0.81 mm | - | - |
| Wire Gauge | 16 AWG - 14 AWG | 16 AWG - 14 AWG | - |
| Termination Style | Crimp | - | - |
| Gender | Male | Female | - |
| Insulation | Insulated | - | - |
| Color | Blue | - | - |
| Contact Plating | Tin | - | - |
| Contact Material | Brass | - | - |
| Series | 250 FASTON | 250 | - |
| Tradename | FASTON | - | - |
| Packaging | Reel | Reel | - |
| Current Rating | - | - | - |
| Insulation Material | Nylon | - | - |
| Length | 21.72 mm | - | - |
| Material | Brass | - | - |
| Mounting Angle | Straight | - | - |
| Mounting Method | Push In | - | - |
| Voltage Rating | 600 V | - | - |
| Width | 13.26 mm | - | - |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | - |
| Maximum Bundle Diameter | - | - | - |
| Contact Gender | - | - | - |
| Product Type | Terminals | Terminals | - |
| Factory Pack Quantity | 1400 | 2200 | - |
| Subcategory | Terminals | Terminals | - |
| Part # Aliases | 3-521057-2 | 3-521072-2 | - |
| Unit Weight | 0.085469 oz | - | - |