A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5945-01-150-6501
NSN 5855-01-312-5160
NSN 6320-01-171-3238
NSN 6240-01-318-1522
NSN 5905-01-139-0835
NSN 2925-01-140-8957
NSN 5945-00-226-2490
NSN 6620-01-442-7951
NSN 5965-00-529-0602
NSN 5915-01-311-3891
NSN 6685-00-627-6102
NSN 5895-01-175-9859