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 5910-00-494-7061
NSN 6145-01-549-3370
NSN 5935-00-305-5902
NSN 5975-01-114-5853
NSN 5915-01-389-7313
NSN 6685-01-180-3807
NSN 5855-00-869-3635
NSN 5996-01-487-4377
NSN 6105-01-588-4973
NSN 5998-00-088-3728
NSN 2925-00-932-6262
NSN 5975-00-995-8168