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 5895-01-346-2624
NSN 5905-01-186-8784
NSN 5935-01-291-0816
NSN 5925-00-867-3972
NSN 5975-01-463-8705
NSN 5965-00-350-2367
NSN 6610-00-835-7683
NSN 5998-01-622-1879
NSN 6220-01-157-9062
NSN 5975-01-104-2390
NSN 6645-01-144-1431
NSN 5925-01-410-8515