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 6220-01-616-4492
NSN 6220-00-771-6580
NSN 5945-01-376-3897
NSN 6135-00-603-4859
NSN 5930-00-810-2421
NSN 5965-01-452-2973
NSN 5985-01-240-7680
NSN 5960-01-212-7413
NSN 6650-01-472-6753
NSN 7035-01-433-3547
NSN 5990-01-442-3520
NSN 5915-00-195-4236