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 6685-01-047-1479
NSN 5935-01-105-7677
NSN 6150-00-753-3950
NSN 5960-00-800-9215
NSN 6150-01-398-8879
NSN 6610-00-856-7136
NSN 6145-01-294-9564
NSN 5998-01-069-5569
NSN 5920-01-216-6128
NSN 5960-01-279-0985
NSN 5930-00-239-7650
NSN 6620-01-577-6285