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 5910-01-111-7538
NSN 6110-01-025-6139
NSN 5935-01-487-6859
NSN 6645-01-020-4557
NSN 5965-01-568-2681
NSN 5920-01-547-4174
NSN 6650-01-127-4647
NSN 5935-01-146-5799
NSN 5985-01-464-0410
NSN 5915-01-435-0880
NSN 5895-01-501-1170
NSN 5975-00-244-0706