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 6130-01-276-7244
NSN 6150-01-262-9606
NSN 6620-01-643-5531
NSN 5990-00-989-6839
NSN 5965-01-477-0015
NSN 6145-01-136-8517
NSN 6240-00-034-5909
NSN 6620-01-440-9810
NSN 5910-00-690-0954
NSN 5855-01-327-6678
NSN 6610-00-176-5486
NSN 5998-01-489-5675