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 5950-00-167-1069
NSN 6645-01-475-8283
NSN 6685-00-443-7708
NSN 6685-01-596-5391
NSN 5930-01-044-9992
NSN 5935-01-155-8945
NSN 5975-00-180-5132
NSN 6110-00-193-2847
NSN 5965-00-444-6544
NSN 5925-01-335-5403
NSN 6320-00-937-5625
NSN 6645-01-352-5675