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| PartNumber | 3-640991-1 | 3-640993-1 | 3-640992-1 |
| Description | Headers & Wire Housings CONTACT 18 AWG | Headers & Wire Housings CONTACT 22 AWG | Headers & Wire Housings OBSOLETE |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| RoHS | Y | Y | - |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | TE Connectivity |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 5000 | 5000 | 1 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Series | - | MTA-156 | - |
| Tradename | - | MTA | - |
| Packaging | - | Bulk | - |