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 5999-01-653-8511
NSN 6240-01-560-9850
NSN 6645-00-754-4108
NSN 5905-01-290-3468
NSN 5910-00-035-5534
NSN 6610-01-102-2256
NSN 5905-01-447-2806
NSN 5996-00-372-4528
NSN 5935-00-246-9707
NSN 6145-00-156-4394
NSN 5998-00-012-3701
NSN 6150-01-571-7980