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 5996-00-900-5251
NSN 5975-01-480-2069
NSN 5990-01-281-0018
NSN 5935-01-325-6431
NSN 6620-00-543-2534
NSN 6320-00-908-6841
NSN 6110-00-959-3386
NSN 5996-01-319-1845
NSN 2925-00-150-5913
NSN 5996-01-447-1418
NSN 5945-00-153-4427
NSN 5985-01-043-7615