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 6150-00-583-9878
NSN 6610-01-648-9997
NSN 5985-00-394-5888
NSN 5920-01-384-8699
NSN 4140-01-157-8882
NSN 5895-01-286-7068
NSN 6320-00-405-2348
NSN 6240-00-498-5971
NSN 6685-01-164-0825
NSN 5925-01-394-3725
NSN 4140-01-547-5589
NSN 5985-00-823-6302