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 6135-00-416-2898
NSN 5915-01-627-2299
NSN 5930-00-567-7033
NSN 5950-00-519-7016
NSN 5996-00-991-2686
NSN 5990-00-061-3360
NSN 6610-00-482-6498
NSN 5895-01-606-4401
NSN 5975-01-036-9578
NSN 6150-01-088-0557
NSN 6130-01-310-8857
NSN 6685-00-228-4815