NASA EVA Helmet Gas Purge Assy, 2 each For Sale

2 each NASA EVA Helmet Gas Purge / Gas Removal Syringe Assembly SED42100958-30 ), Class III Not for Flight. These are large-volume plastic syringes used as ground support equipment for Extravehicular Mobility Unit (EMU) helmet processing and testing. They feature the original labeling with a flow diagram and “OFF” handle instruction for controlled gas extraction from the helmet volume, ducts, or connected lines during assembly, nitrogen-purge verification, or maintenance. Marked “CLASS III NOT FOR FLIGHT,” these are non-flight GSE/test article. Condition is as shown with visible label wear and residual tape; both units are intact and clearly marked. Ideal for EVA/spacesuit hardware collectors.