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 6240-01-423-0605
NSN 5910-01-417-3160
NSN 6105-00-671-5220
NSN 5960-00-721-1744
NSN 5960-01-247-1994
NSN 6320-01-575-6342
NSN 6150-00-864-0363
NSN 6620-00-273-8735
NSN 6105-01-512-0044
NSN 6610-00-500-6944
NSN 5915-00-079-6415
NSN 6685-01-076-7321