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 5965-01-058-6285
NSN 6135-01-455-9646
NSN 6130-00-608-9113
NSN 2925-00-157-1602
NSN 6620-01-483-5247
NSN 5905-00-578-0134
NSN 5925-01-651-3059
NSN 5990-00-451-7630
NSN 6150-01-634-0575
NSN 5920-00-558-6792
NSN 6145-00-440-3503
NSN 5920-00-552-9145