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 5965-01-100-5283
NSN 5960-00-960-6805
NSN 5975-01-199-7203
NSN 5920-01-119-3652
NSN 7035-01-344-8708
NSN 5998-01-202-8266
NSN 6685-01-370-5258
NSN 5998-01-321-1579
NSN 2925-01-541-5031
NSN 5965-00-513-1352
NSN 5930-01-643-5830
NSN 5835-01-222-7714