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 6240-00-021-8714
NSN 5975-01-344-6474
NSN 6685-01-603-3153
NSN 5905-00-410-4253
NSN 6610-01-156-0810
NSN 6130-01-464-3893
NSN 6610-00-099-4096
NSN 6650-00-539-7298
NSN 6150-00-952-2766
NSN 5920-01-336-4608
NSN 7035-00-946-2642
NSN 5855-01-147-4785