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 5920-01-073-8713
NSN 6220-00-827-0227
NSN 6685-00-057-2777
NSN 5996-01-434-9060
NSN 5999-00-279-4919
NSN 5920-01-415-6046
NSN 5935-01-604-9439
NSN 6105-01-408-6135
NSN 6150-01-400-4211
NSN 5965-00-208-4896
NSN 6320-01-354-6204
NSN 5996-01-406-4035