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 6130-01-310-4939
NSN 6610-01-530-9610
NSN 6110-01-655-5030
NSN 5985-01-422-1552
NSN 5925-00-812-4522
NSN 6145-01-121-8615
NSN 6135-00-613-1068
NSN 5935-01-351-5689
NSN 5905-01-379-7450
NSN 5855-01-150-9970
NSN 6685-00-978-5069
NSN 6240-00-925-4662