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 5915-01-027-0800
NSN 5996-01-544-1467
NSN 2925-01-568-3705
NSN 7035-01-312-8573
NSN 4140-01-200-5032
NSN 5985-01-456-7488
NSN 6145-01-361-8985
NSN 5945-01-313-8400
NSN 6320-01-228-2380
NSN 5990-00-929-0500
NSN 5985-01-278-9067
NSN 2925-01-487-0886