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 5905-01-613-6438
NSN 5975-00-651-3919
NSN 5935-01-575-1143
NSN 6320-00-228-5678
NSN 5960-00-535-9692
NSN 5985-01-463-8562
NSN 6620-01-563-8841
NSN 6685-01-528-2584
NSN 4140-01-028-0629
NSN 5920-01-289-5691
NSN 6645-01-394-7544
NSN 6685-01-189-7208