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 5930-01-113-6234
NSN 5935-01-444-4153
NSN 5985-00-117-7246
NSN 5975-00-891-9738
NSN 6130-00-839-3227
NSN 7035-01-226-8894
NSN 6150-01-356-8290
NSN 5965-01-176-7265
NSN 5998-01-203-5288
NSN 6320-01-371-3047
NSN 5905-01-230-1514
NSN 6130-01-214-4620