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 6320-00-925-0558
NSN 6145-01-409-0408
NSN 5910-01-128-1064
NSN 6130-00-444-8841
NSN 6645-01-359-1487
NSN 5975-01-127-1318
NSN 6150-00-850-6471
NSN 5975-00-369-9721
NSN 5990-01-443-2931
NSN 6620-01-062-1662
NSN 5965-01-447-3767
NSN 5920-01-416-2133