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 5910-01-023-1406
NSN 5999-01-565-0914
NSN 7035-00-631-3782
NSN 5945-01-464-0029
NSN 5999-01-442-1526
NSN 5905-01-421-4863
NSN 5905-00-549-4187
NSN 6685-00-179-9068
NSN 5950-01-601-1591
NSN 5945-01-420-9757
NSN 5935-01-146-5537
NSN 6320-00-539-9283