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 5920-00-473-0563
NSN 6110-00-233-8121
NSN 6610-01-633-8931
NSN 6220-01-154-0204
NSN 5985-00-883-0212
NSN 5996-00-327-2163
NSN 5895-01-606-2991
NSN 4140-01-236-6637
NSN 5925-00-238-3072
NSN 6110-01-502-8714
NSN 5905-01-550-5391
NSN 6685-01-437-9113