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 2925-01-654-1164
NSN 5945-00-561-5849
NSN 4140-00-269-8545
NSN 5835-01-580-0446
NSN 5895-00-963-8751
NSN 6145-01-583-5443
NSN 6145-01-381-5589
NSN 6685-01-094-6334
NSN 2925-00-923-5375
NSN 5925-01-326-4411
NSN 5920-01-471-5364
NSN 5905-01-457-3009