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 6610-00-864-4730
NSN 5835-01-328-6626
NSN 5990-01-631-1952
NSN 5996-01-659-9365
NSN 6220-00-678-3915
NSN 6610-00-226-4710
NSN 5965-01-584-4623
NSN 5930-01-281-5553
NSN 5990-00-956-9130
NSN 5950-01-437-8873
NSN 6135-01-633-8502
NSN 5910-01-609-8043