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 5920-01-021-5198
NSN 5960-01-553-4557
NSN 5920-01-483-6830
NSN 2925-00-502-3768
NSN 5975-01-383-7008
NSN 5905-01-517-5645
NSN 7035-00-104-7613
NSN 5920-01-536-9253
NSN 5950-01-496-5482
NSN 5999-00-856-6460
NSN 5985-00-903-0779
NSN 5920-01-396-1989