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 6150-01-573-1600
NSN 6685-01-113-6240
NSN 5935-01-519-4610
NSN 6135-01-049-5980
NSN 5965-01-411-1856
NSN 5925-00-069-8985
NSN 6145-00-904-3811
NSN 5920-01-032-6471
NSN 7035-00-153-3826
NSN 6650-00-202-4540
NSN 6145-01-628-6604
NSN 5950-01-144-5928