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 5895-01-435-1206
NSN 6240-01-026-1376
NSN 5835-01-286-6499
NSN 5835-01-632-6627
NSN 2925-00-355-5130
NSN 5960-00-925-0752
NSN 5998-01-548-3592
NSN 5925-00-450-9663
NSN 6145-01-395-7850
NSN 6620-01-311-3516
NSN 7035-01-556-9060
NSN 5835-01-550-5094