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 5975-01-072-8365
NSN 6650-01-170-8242
NSN 6110-00-177-4657
NSN 5985-00-100-0140
NSN 5895-01-112-0532
NSN 4140-01-549-6371
NSN 5895-01-556-4322
NSN 2925-01-231-6312
NSN 6150-00-533-6268
NSN 5935-01-239-0984
NSN 5950-01-433-2995
NSN 5960-00-269-4762