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 5930-00-082-1002
NSN 5975-01-570-3730
NSN 6150-00-855-2481
NSN 5945-00-279-6554
NSN 6320-01-536-3077
NSN 7035-00-849-5526
NSN 2925-00-544-5159
NSN 5950-00-338-3372
NSN 6110-00-140-5110
NSN 5996-00-205-2701
NSN 6145-00-705-6686
NSN 2925-01-264-4092