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 5950-01-219-6535
NSN 6685-00-173-3848
NSN 5935-01-501-5738
NSN 6135-01-104-3790
NSN 6610-00-457-0325
NSN 5990-01-447-7779
NSN 6685-01-573-3524
NSN 6130-01-361-8628
NSN 5985-01-502-6085
NSN 6220-00-232-4436
NSN 6130-01-068-9250
NSN 6620-01-300-2631