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 5920-01-371-3552
NSN 6240-01-032-3534
NSN 5990-01-015-5968
NSN 5990-00-562-8413
NSN 5945-00-900-3932
NSN 5915-01-081-3574
NSN 7035-01-459-8268
NSN 6105-00-534-8211
NSN 5996-01-045-7004
NSN 5975-00-451-0230
NSN 6320-01-583-6809
NSN 6150-00-932-8314