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 7035-01-123-8723
NSN 5895-01-440-9847
NSN 5915-01-065-9775
NSN 5960-00-134-0607
NSN 6645-00-470-5310
NSN 5925-01-480-4146
NSN 5920-01-541-5030
NSN 5935-00-990-5099
NSN 6650-01-381-2972
NSN 6240-01-425-1160
NSN 2925-01-101-4655
NSN 5855-01-047-9267