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 5990-00-107-7161
NSN 6110-01-581-5211
NSN 6620-01-439-8035
NSN 5930-01-634-0659
NSN 5905-01-581-7152
NSN 5945-01-652-5596
NSN 6145-01-257-9209
NSN 5855-01-418-2962
NSN 5920-01-406-7710
NSN 5950-00-539-0791
NSN 6220-00-239-4427
NSN 5930-01-089-8615