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 5935-01-124-0288
NSN 5965-01-098-7028
NSN 6645-01-514-0236
NSN 2925-01-065-0060
NSN 5990-01-486-2556
NSN 5950-01-004-5546
NSN 5915-01-325-7772
NSN 6620-01-618-2962
NSN 5975-00-770-5634
NSN 5905-00-205-2595
NSN 5905-01-452-3310
NSN 6610-01-411-8770