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 6150-01-270-3397
NSN 6145-00-105-1239
NSN 5965-01-469-2504
NSN 5855-00-586-6255
NSN 5905-00-057-4125
NSN 6645-01-250-5154
NSN 5975-01-106-9804
NSN 6645-01-190-0085
NSN 5999-00-188-2219
NSN 6685-00-012-3734
NSN 6610-01-222-0582
NSN 6645-00-405-8570