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 6105-01-033-4720
NSN 5925-00-469-7683
NSN 5975-01-112-0872
NSN 7035-01-336-0464
NSN 5920-01-044-9021
NSN 6240-00-113-1912
NSN 6320-00-483-0451
NSN 5930-01-544-1804
NSN 5996-00-270-0340
NSN 5996-01-032-1238
NSN 2925-01-069-5324
NSN 6150-00-076-8808