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 5998-00-809-7863
NSN 5925-01-374-1489
NSN 6685-01-213-8769
NSN 5950-01-616-8243
NSN 6220-01-245-4278
NSN 6320-00-261-9136
NSN 6105-00-097-9965
NSN 6620-01-512-2016
NSN 5930-00-655-1508
NSN 5998-01-236-0433
NSN 5985-01-576-9997
NSN 6240-00-943-4468