Aluminum, Stainless Steel
An Apollo Command Service Module (Block I) Waste Disposal Selector Valve assembly manufactured circa 1965 under NASA Apollo Contract NAS9-150 by Accessory Products Company (APCO). Part of the Environmental Control System (ECS) Waste Management System / Waste Management-Selector, this valve was used to route human (liquid and solid) bio-waste products originating from a Fecal Canister, Urine Receptacle, Urine Volume Sampling Measuring Systems Unit (UVSMS) and Vacuum Cleaner assembly to overboard discharge. The Waste Management System (including this Valve) was redesigned for the Block II CSM.
Diagram at left shows location of valve assembly handle on Panel 201 of the Block I CSM.