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 5998-01-131-7386
NSN 6110-01-406-4818
NSN 5996-01-376-7659
NSN 5920-00-149-0854
NSN 5920-01-269-3032
NSN 5835-01-065-8481
NSN 5998-00-842-3845
NSN 5975-00-777-8171
NSN 6220-01-165-3635
NSN 5998-01-122-2610
NSN 5835-01-501-0526
NSN 4140-00-827-1821