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 2925-01-457-5649
NSN 5998-01-031-7033
NSN 2925-01-513-9114
NSN 6685-01-251-3797
NSN 5935-01-061-2930
NSN 6240-00-918-2426
NSN 5985-01-099-4755
NSN 6320-00-036-3688
NSN 6150-01-200-7935
NSN 5910-00-900-6558
NSN 5930-00-484-8124
NSN 5930-01-091-3602