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| PartNumber | 501939-0300 | 501939-0400 | 501939-0500 |
| Description | Headers & Wire Housings 1.0 W/B 1-Row Rec Hs g Positive Lock 3Ckt | Headers & Wire Housings 1.0 W/B 1-Row Rec Hs g Positive Lock 4Ckt | Headers & Wire Housings 1.0 W/B 1-Row Rec Hs g Positive Lock 5Ckt |