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 5930-01-038-8781
NSN 5999-00-949-0265
NSN 5835-01-238-3381
NSN 5905-01-277-2581
NSN 5998-00-267-1044
NSN 5945-01-555-8373
NSN 6240-01-275-3770
NSN 5990-01-459-3856
NSN 5910-01-570-7343
NSN 6610-01-576-5890
NSN 5855-01-267-2751
NSN 5855-00-869-3635