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 6105-01-269-0485
NSN 6650-01-323-0012
NSN 5996-01-658-2878
NSN 5950-00-479-8120
NSN 6220-01-443-1467
NSN 5895-00-136-1389
NSN 5855-01-267-2751
NSN 6110-01-084-6013
NSN 6130-01-023-3430
NSN 5920-01-302-8841
NSN 6220-01-463-0776
NSN 7035-01-514-8522