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 5950-01-170-4288
NSN 5975-01-203-0263
NSN 6620-01-361-8685
NSN 6240-01-315-9303
NSN 5965-01-573-5863
NSN 6105-00-281-8185
NSN 6320-00-925-0558
NSN 5905-00-363-9689
NSN 6645-01-614-4838
NSN 5960-01-234-0926
NSN 6150-00-172-6704
NSN 5950-00-597-3661