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 5996-01-256-8630
NSN 5965-00-280-8506
NSN 5930-01-252-0456
NSN 6620-00-171-4035
NSN 5960-01-283-2281
NSN 5930-00-000-0117
NSN 5945-01-260-8499
NSN 6105-01-225-4974
NSN 7035-01-476-7787
NSN 6240-00-840-3647
NSN 6320-00-456-2092
NSN 5925-01-228-7394