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 7035-01-189-7367
NSN 6130-01-344-4154
NSN 6685-01-217-5019
NSN 5998-01-442-7841
NSN 5835-00-930-8500
NSN 5945-00-240-0103
NSN 5905-00-097-8412
NSN 5930-01-200-6343
NSN 2925-01-069-5324
NSN 6620-00-299-2530
NSN 6145-01-245-5263
NSN 5855-00-233-2366