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440     M642/4-1

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    Product Description

    440 from Switchcraft, MIL Type 1/4" phone plug designed for high quality communication equipment to meet military requirements. 2-Conductor, Screw Terminals, Black Handle, Mil Number M642/4-1. Note-effective Jan 2014 Switchcraft 440 is no longer available. Please see Switchcraft 440Z which is the same item but not mil marked or mil qualified. Similar to the former PJ055B.

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