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 6645-01-194-3214
NSN 5990-00-097-7642
NSN 6110-00-161-4115
NSN 6135-01-658-3265
NSN 5950-01-152-3042
NSN 6110-00-460-7179
NSN 5960-01-325-2241
NSN 6620-00-803-2423
NSN 5985-01-403-2835
NSN 5945-00-912-0165
NSN 5950-01-390-1622
NSN 5835-00-350-3703