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 5975-00-012-0095
NSN 5930-00-018-1093
NSN 5950-00-061-8735
NSN 5930-00-201-5857
NSN 5935-00-959-5668
NSN 5996-00-918-3835
NSN 5935-01-298-5293
NSN 5855-01-594-7809
NSN 5975-00-690-4509
NSN 2925-01-089-6269
NSN 5998-01-225-3288
NSN 5905-01-525-8685