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 6610-01-157-0426
NSN 6650-01-613-2963
NSN 5960-01-394-0750
NSN 6240-01-492-9733
NSN 5930-01-394-2131
NSN 5950-00-707-6107
NSN 7035-01-254-3044
NSN 5975-01-442-3120
NSN 6110-01-643-8403
NSN 6645-00-816-1707
NSN 6685-00-492-9817
NSN 6150-01-196-4472