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 5990-00-459-5752
NSN 5998-00-399-0030
NSN 5965-00-652-5661
NSN 5945-01-452-3295
NSN 6685-01-390-8642
NSN 6145-00-109-0356
NSN 6130-01-120-4617
NSN 5915-01-384-3858
NSN 6620-00-137-0332
NSN 6135-01-515-4260
NSN 6135-01-056-4609
NSN 7035-01-449-7605