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 5950-01-457-3165
NSN 5996-01-555-7690
NSN 5960-01-094-4134
NSN 5930-00-859-1831
NSN 2925-00-646-6099
NSN 5996-00-823-8487
NSN 5945-01-442-8038
NSN 5925-01-169-8205
NSN 5910-00-679-9556
NSN 5990-01-065-0492
NSN 5945-01-098-5319
NSN 5998-01-209-2114