The 1586862-6 is a 6-position, 2-row plug housing from the TE VAL-U-LOK series, on a 0.165" (4.20mm) pitch. This is a wire-to-board connector housing — it does not include contacts. The latch lock provides a positive retention in vibration environments, which is a key selection criterion for wire-to-board applications.
The 1586862-6 mates with a VAL-U-LOK receptacle header (not included). The contacts are male pin type, terminated by crimp. The housing accepts the standard VAL-U-LOK crimp terminals — confirm the wire gauge and plating grade for your application.