The note on this housing is straightforward: contacts are not included. The 7-position count and 2-row layout are the primary match points; the latch lock clicks into the mating header's ramp and holds without a secondary screw or clip. The natural colour is the standard unkeyed version — if a colour-coded keying variant exists in the MIC series, the part number suffix changes.
The 172495-1 carries 7 positions at a 6.00 mm row spacing with a latch lock — the extra position and the different retention mechanism mean the two are not drop-in interchangeable. For a 7-circuit harness, the 172495-1 is the correct housing; the 6-position version would leave a circuit unpopulated.