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 7035-01-501-9118
NSN 5950-01-287-5647
NSN 5835-01-286-6499
NSN 4140-00-097-0167
NSN 7035-01-399-5354
NSN 6610-01-621-4621
NSN 6645-00-580-9605
NSN 5950-00-675-9554
NSN 6105-01-506-9130
NSN 4140-01-050-8096
NSN 6105-01-648-5790
NSN 5905-00-992-7947