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 5998-00-987-5489
NSN 6150-00-127-2516
NSN 5835-00-911-2340
NSN 6685-00-918-7078
NSN 6620-01-367-4960
NSN 6110-00-097-9140
NSN 5910-01-157-6654
NSN 5999-01-472-2269
NSN 6645-01-552-0004
NSN 5915-01-448-4323
NSN 6620-00-104-9722
NSN 6145-00-767-5716