This specification sheet covers the Mechanical Scanner, MX-10717(V)2/U and augments MIL-S-49301. The MX-10717(V)2/U is used on the AN/TAS-4, AN/TAS-4A, AN/TAS-4B, AN/TAS-4C, AN/TAS-4D, Night Vision Sight, Infrared; the AN/TAS-5, Night Tracker; and the AN/TAS-6, AN/TAS-6A, Night Observation Device, Long Range. Intended Use: The MX-10717(V)2/U is intended for use with the AN/TAS-4, AN/TAS-4A, AN/TAS-4B, AN/TAS-4C, AN/TAS-4D, AN/TAS-5, AN/TAS-6, AN/TAS-6A, thermal night sights.