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 6145-01-546-3379
NSN 6610-01-310-0553
NSN 6220-01-255-5067
NSN 2925-01-482-8036
NSN 5915-00-278-5561
NSN 6145-01-271-5051
NSN 5999-00-191-6279
NSN 5998-01-202-9214
NSN 6135-01-651-3210
NSN 6645-00-780-5260
NSN 5990-01-088-5293
NSN 6105-00-312-6547