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 5998-01-412-8341
NSN 5950-00-374-5200
NSN 5990-00-518-0684
NSN 5910-01-506-1913
NSN 6145-01-658-8048
NSN 5925-01-628-4934
NSN 6650-01-433-5098
NSN 6145-01-093-0383
NSN 5996-01-258-5888
NSN 5935-01-530-6860
NSN 6220-01-455-4768
NSN 6145-00-323-6021