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 5920-00-926-7560
NSN 6320-01-021-6633
NSN 5999-01-593-6296
NSN 5996-01-158-2531
NSN 5855-01-100-3272
NSN 5925-01-202-9277
NSN 6650-01-633-5160
NSN 6645-00-933-2170
NSN 5915-01-478-4948
NSN 5895-01-216-6194
NSN 6240-00-981-8218
NSN 6130-00-422-1769