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 6150-00-682-2427
NSN 6645-01-202-7986
NSN 6650-00-833-4002
NSN 5855-01-644-3271
NSN 6135-01-631-8462
NSN 6645-00-925-2887
NSN 5910-00-997-8025
NSN 6685-00-274-5533
NSN 6110-01-344-9857
NSN 2925-01-261-0701
NSN 6105-00-905-6567
NSN 6150-01-278-1166