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 6110-01-384-5242
NSN 6135-00-553-7995
NSN 5960-00-472-5000
NSN 6610-00-801-4652
NSN 5930-01-583-2179
NSN 5960-00-009-1622
NSN 6620-01-620-1060
NSN 6145-01-510-7417
NSN 6130-00-952-1803
NSN 6620-00-929-1188
NSN 5950-01-299-5122
NSN 5895-01-581-1675