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 5930-01-422-1599
NSN 5960-00-642-9977
NSN 6645-00-285-8781
NSN 5910-01-328-7513
NSN 5990-00-473-1809
NSN 5915-00-346-2611
NSN 6110-00-349-6848
NSN 6135-00-798-1425
NSN 5965-01-526-8967
NSN 6130-01-360-5572
NSN 6135-00-866-2311
NSN 5925-01-428-3790