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 5950-01-410-2925
NSN 5930-00-999-4401
NSN 5975-01-562-0537
NSN 6320-01-556-2011
NSN 5950-01-195-3597
NSN 5950-00-122-9520
NSN 6145-01-533-2552
NSN 6130-00-571-2626
NSN 5996-01-085-6246
NSN 6105-00-826-3432
NSN 6650-00-520-5785
NSN 5930-00-336-5885