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 5920-01-039-2236
NSN 5965-01-350-1890
NSN 6135-00-563-7711
NSN 6105-01-175-1286
NSN 5895-01-373-6669
NSN 5950-01-418-5339
NSN 6145-01-043-8139
NSN 5990-01-320-1412
NSN 6240-00-509-2485
NSN 6105-01-067-9320
NSN 6145-00-808-9463
NSN 5965-00-539-7778