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 5895-00-299-1601
NSN 5998-01-529-6471
NSN 6150-01-215-1529
NSN 6130-01-170-9747
NSN 5915-01-588-2842
NSN 6645-01-243-3138
NSN 6650-00-432-9263
NSN 6105-00-947-1369
NSN 6650-00-105-8063
NSN 6320-00-905-0543
NSN 6130-00-954-0103
NSN 6105-01-457-3333