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 5855-01-103-8650
NSN 6135-01-632-3365
NSN 5999-01-276-3028
NSN 5935-01-578-0300
NSN 6320-00-593-0379
NSN 5915-00-816-9056
NSN 6620-01-085-8688
NSN 5925-01-182-3286
NSN 6135-00-223-9563
NSN 6645-00-256-4072
NSN 5960-00-703-3208
NSN 6135-01-230-4399