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 5996-01-194-8117
NSN 5998-01-282-2319
NSN 5835-00-678-6981
NSN 5985-01-334-2063
NSN 6685-00-270-8070
NSN 5998-01-336-0779
NSN 6220-01-370-5248
NSN 2925-01-027-1293
NSN 6135-00-495-6862
NSN 5835-01-629-2044
NSN 6110-00-366-1344
NSN 5895-01-462-9908