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 6645-01-432-1068
NSN 7035-01-515-7055
NSN 5975-01-608-6018
NSN 6145-01-574-9779
NSN 5910-01-153-2651
NSN 5945-01-367-6469
NSN 5925-00-932-3027
NSN 5985-00-920-3877
NSN 5960-01-322-1945
NSN 5998-01-410-6974
NSN 5960-01-399-4327
NSN 7035-01-256-9598