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 6685-01-649-5834
NSN 7035-01-064-8212
NSN 5998-00-549-6670
NSN 5950-01-281-0587
NSN 5998-01-442-3481
NSN 4140-01-191-0219
NSN 5855-00-688-9954
NSN 6645-01-162-8023
NSN 6150-01-084-5705
NSN 5985-01-126-2687
NSN 5905-00-518-2666
NSN 5855-00-560-0110