Description

    Apollo Command Module Environmental Control System Hardware: Two Back Pressure Valves, AiResearch Part 829170, each with Attached Actuator, AiResearch Part 821210 (Contract NAS-9-150). A complex assembly, 4.25" x 5.75" x 3.75" overall, with a multi-pin electrical connector at top and glycol inlet and outlets at bottom. There is a red "Warning/ Dielectric/ Testing/ Completed" sticker and a metal ID plate on each actuator giving the part number as "821210-3-1" and serial numbers as "96-R1 / 96-R2". The metal ID plates name these as a "Valve" with a part number of "829170-1-2" and serial numbers of "76-R1 / 76-R2". A diagram of this component copied from the "Apollo System Engineering Manual" is included. Very fine.

    Fees, Shipping, and Handling Description: Miscellaneous Collectibles, Small (view shipping information)

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    Auction Info

    Auction Dates
    November, 2014
    12th Wednesday
    Bids + Registered Phone Bidders: 1
    Lot Tracking Activity: N/A
    Page Views: 254

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