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 6135-01-270-8601
NSN 5925-01-383-9603
NSN 6610-01-184-3210
NSN 5835-01-157-5886
NSN 5930-01-023-8447
NSN 6105-01-425-9726
NSN 5990-00-170-4239
NSN 6645-00-211-6906
NSN 5945-00-023-1963
NSN 7035-00-529-3128
NSN 5960-00-177-2953
NSN 6150-01-487-6624