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 5910-01-553-8553
NSN 5975-01-158-0299
NSN 5905-01-525-3805
NSN 5990-01-013-8464
NSN 5985-00-708-2193
NSN 6610-01-194-8659
NSN 6130-01-617-8288
NSN 6610-01-307-3192
NSN 5985-01-024-3832
NSN 5950-00-113-1304
NSN 6685-00-632-6160
NSN 5915-01-624-3709