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 6320-01-036-2598
NSN 5930-00-528-9728
NSN 5990-01-626-3840
NSN 5998-01-474-0019
NSN 6150-01-328-6350
NSN 6645-01-561-7432
NSN 6610-00-099-4096
NSN 5996-00-248-7061
NSN 7035-01-474-0244
NSN 5835-01-219-0586
NSN 6645-01-030-5288
NSN 5915-00-816-7362