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 5990-01-525-2250
NSN 5960-01-142-1995
NSN 6620-01-633-8443
NSN 6645-00-733-9341
NSN 6645-01-066-1195
NSN 6650-00-202-4540
NSN 7035-00-978-7837
NSN 6320-00-977-3930
NSN 5895-01-428-2518
NSN 5910-00-605-0948
NSN 6145-00-348-4320
NSN 6150-00-032-5815