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 6685-00-858-4586
NSN 5835-00-491-3834
NSN 6645-00-920-8690
NSN 5975-01-406-5337
NSN 6110-00-116-2947
NSN 6620-00-814-4770
NSN 6110-00-407-3013
NSN 6620-01-652-4349
NSN 5935-01-009-6412
NSN 6645-01-566-3205
NSN 6150-01-565-8923
NSN 6240-01-226-8866