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 6150-00-231-3689
NSN 5965-01-519-8758
NSN 6220-00-166-5773
NSN 5950-01-527-4948
NSN 6135-01-068-0119
NSN 6135-01-461-2915
NSN 5985-00-623-0328
NSN 6320-00-164-4087
NSN 5925-01-498-9992
NSN 6130-00-764-2278
NSN 6645-00-392-8728
NSN 5996-01-141-6916