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 5950-00-118-9998
NSN 5925-01-652-9617
NSN 6110-01-422-8680
NSN 5910-00-837-8035
NSN 4140-01-175-6035
NSN 7035-01-099-9163
NSN 6240-01-380-6466
NSN 6135-01-100-3593
NSN 6130-00-877-5743
NSN 5985-01-634-0635
NSN 5915-01-428-6681
NSN 5965-01-196-7760