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 5975-00-925-1197
NSN 6610-00-593-5299
NSN 6150-01-446-8257
NSN 5996-01-416-1489
NSN 5925-00-437-2854
NSN 5965-01-425-2039
NSN 6145-00-197-9010
NSN 6135-01-442-0890
NSN 6145-01-070-0579
NSN 5895-01-106-3532
NSN 5925-01-197-6627
NSN 6620-01-340-1503