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 6685-01-352-3204
NSN 5925-01-126-6288
NSN 6620-00-900-3986
NSN 5905-00-630-1095
NSN 5910-00-584-2647
NSN 6610-01-069-1156
NSN 5985-00-571-3945
NSN 5925-01-152-2690
NSN 6320-01-521-1764
NSN 5960-01-462-7704
NSN 5945-01-504-3740
NSN 6130-01-229-2473