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 6645-01-352-5675
NSN 5895-01-303-5770
NSN 5930-00-312-4061
NSN 6645-00-518-2068
NSN 2925-01-381-5307
NSN 6145-00-213-9177
NSN 5975-00-459-8902
NSN 7035-01-158-7673
NSN 5915-01-483-6709
NSN 2925-00-149-0760
NSN 6685-01-053-0888
NSN 5950-00-284-7294