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 6135-01-132-6310
NSN 6650-00-445-1427
NSN 5930-01-345-5762
NSN 5996-01-044-6241
NSN 6645-00-042-9587
NSN 5925-00-155-2587
NSN 5975-00-711-1868
NSN 2925-01-510-9378
NSN 7035-00-337-8745
NSN 5855-01-550-5219
NSN 5945-00-853-3100
NSN 5945-00-411-8827