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 2925-00-724-9252
NSN 6150-00-879-8536
NSN 7035-01-485-9723
NSN 6320-01-335-8336
NSN 6110-01-571-8717
NSN 6645-00-139-9239
NSN 6150-00-017-9121
NSN 6150-01-377-4883
NSN 6685-01-222-8140
NSN 5960-01-439-9517
NSN 5935-01-437-6071
NSN 5985-00-027-5918