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 5996-01-261-2303
NSN 5945-01-196-2086
NSN 6610-01-580-3272
NSN 5985-01-128-3313
NSN 5930-01-565-3426
NSN 5990-01-257-2476
NSN 5985-00-809-5851
NSN 6650-01-614-5281
NSN 6145-00-290-1759
NSN 5998-00-684-8186
NSN 6150-01-614-6823
NSN 5905-00-604-8835