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 5895-01-359-9723
NSN 5965-01-485-3501
NSN 6135-01-214-6441
NSN 5960-01-004-3994
NSN 5855-00-548-4742
NSN 6145-01-442-3161
NSN 5945-01-060-5791
NSN 5920-01-055-2024
NSN 5930-01-541-5101
NSN 6240-01-176-4359
NSN 7035-00-803-3056
NSN 6130-01-474-5190