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 5965-01-377-3587
NSN 5945-01-538-7644
NSN 6320-00-456-2092
NSN 5960-01-443-3067
NSN 6110-01-026-1983
NSN 5999-01-593-3847
NSN 5960-01-026-3505
NSN 5950-01-575-4993
NSN 6150-00-989-2169
NSN 6240-01-004-3464
NSN 6650-01-443-5342
NSN 6645-00-816-5337