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 5935-01-167-8531
NSN 6685-01-027-1168
NSN 2925-01-623-9285
NSN 6645-01-227-2036
NSN 6220-00-156-0860
NSN 2925-01-100-3694
NSN 5835-01-541-9991
NSN 5945-01-215-6073
NSN 5950-00-440-0533
NSN 5960-01-087-7138
NSN 5920-01-113-2900
NSN 5835-01-014-4574