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 5950-01-058-6560
NSN 5975-00-840-0045
NSN 2925-00-814-8745
NSN 6150-01-241-3725
NSN 6645-01-449-8752
NSN 6645-01-459-2350
NSN 6650-01-657-7864
NSN 6645-01-219-5911
NSN 6685-01-188-7379
NSN 5950-01-169-9867
NSN 6645-01-551-3703
NSN 5990-00-594-7291