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 5905-01-510-2804
NSN 6645-01-530-3654
NSN 6320-01-216-1678
NSN 5996-00-563-1073
NSN 6650-01-340-8897
NSN 2925-00-640-8611
NSN 7035-01-099-2311
NSN 5935-00-814-0585
NSN 6105-00-364-6554
NSN 6650-01-025-7425
NSN 5975-00-084-8704
NSN 5998-01-252-0192