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 5920-01-208-8794
NSN 6130-01-537-0069
NSN 6150-01-231-6662
NSN 5915-01-211-4043
NSN 6150-00-067-0145
NSN 5985-01-215-1677
NSN 6685-00-881-3767
NSN 5905-01-172-3950
NSN 6135-01-022-5427
NSN 6240-01-042-3650
NSN 5895-01-533-0960
NSN 6150-01-322-5953