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 5996-01-415-3098
NSN 5975-00-902-6550
NSN 5910-01-336-3910
NSN 5945-01-621-7173
NSN 6145-01-652-0759
NSN 6135-00-231-7257
NSN 6610-00-072-4528
NSN 5910-00-581-9843
NSN 5910-01-399-0255
NSN 2925-01-622-8568
NSN 4140-01-425-1725
NSN 5925-01-591-6722