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 5960-01-263-3407
NSN 5855-01-630-5790
NSN 6240-01-173-2985
NSN 5975-00-577-0168
NSN 6105-01-484-2167
NSN 6685-01-384-3062
NSN 5950-01-382-9337
NSN 5945-00-419-2600
NSN 5945-00-069-7114
NSN 5935-01-490-1388
NSN 6220-01-007-6094
NSN 6650-01-329-6350