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 6650-01-254-0491
NSN 6135-01-104-3790
NSN 6220-01-175-1246
NSN 2925-00-033-4621
NSN 6130-01-604-3928
NSN 5935-01-502-7363
NSN 5975-01-442-3070
NSN 4140-01-142-2971
NSN 5985-00-710-5473
NSN 5835-01-439-0180
NSN 6145-01-278-2103
NSN 6220-01-434-4306